readability refactoring and new table_has_data method for base class #28

	# This workflow will upload a Python Package using Twine when a release is created
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#publishing-to-package-registries

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.

	name: Distribute new release

	on:
	release:
	types: [created]


	permissions:
	contents: read

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- uses: actions/setup-python@v3
	with:
	python-version: 3.11

	- run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pytest -n auto --cov=bigquery_exporter --cov-report=xml
	build:
	needs: ['test']
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- uses: actions/setup-python@v3
	with:
	python-version: 3.11

	- run: \|
	python -m pip install --upgrade pip
	pip install build
	python -m build

	- uses: actions/upload-artifact@v3
	with:
	path: ./dist
	pypi-publish:
	needs: ['build']
	environment: 'release'
	name: upload release to PyPI
	runs-on: ubuntu-latest
	permissions:
	# IMPORTANT: this permission is mandatory for trusted publishing
	id-token: write
	steps:
	- uses: actions/download-artifact@v3

	- name: Publish package distributions to PyPI
	uses: pypa/gh-action-pypi-publish@release/v1
	with:
	packages-dir: artifact/

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