.eslintrc.json

{
    "extends": ["eslint:recommended"],
    "rules": {
      "no-unused-vars": "off"
    },
    "env": {
      "es6": true
    },
    "globals": {
          "AdSense": false,
          "AdminDirectory": false,
          "AdminGroupsMigration": false,
          "AdminGroupsSettings": false,
          "AdminLicenseManager": false,
          "AdminReports": false,
          "AdminReseller": false,
          "Analytics": false,
          "AnalyticsReporting": false,
          "AppsActivity": false,
          "BigQuery": false,
          "Browser": false,
          "CacheService": false,
          "Calendar": false,
          "CalendarApp": false,
          "CardService": false,
          "Charts": false,
          "Classroom": false,
          "ConferenceDataService": false,
          "ContactsApp": false,
          "ContentService": false,
          "DataStudioApp": false,
          "Docs": false,
          "DocumentApp": false,
          "DoubleClickCampaigns": false,
          "Drive": false,
          "DriveActivity": false,
          "DriveApp": false,
          "FormApp": false,
          "FusionTables": false,
          "Gmail": false,
          "GmailApp": false,
          "GoogleAppsScript": false,
          "GroupsApp": false,
          "HtmlService": false,
          "Jdbc": false,
          "LanguageApp": false,
          "LinearOptimizationService": false,
          "LockService": false,
          "Logger": false,
          "MailApp": false,
          "Maps": false,
          "MimeType": false,
          "Mirror": false,
          "People": false,
          "PropertiesService": false,
          "ScriptApp": false,
          "Session": false,
          "Sheets": false,
          "ShoppingContent": false,
          "SitesApp": false,
          "Slides": false,
          "SlidesApp": false,
          "SpreadsheetApp": false,
          "TagManager": false,
          "Tasks": false,
          "UrlFetchApp": false,
          "Utilities": false,
          "XmlService": false,
          "YouTube": false,
          "YouTubeAnalytics": false,
          "YouTubeContentId": false,
          "console": false
    }
  }