add classification examples #321

	name: Style check

	on: push

	jobs:
	style-check:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repo
	uses: actions/checkout@v3

	- name: Setup Python
	uses: actions/setup-python@v4

	- name: Install Poetry
	uses: snok/install-poetry@v1
	with:
	virtualenvs-create: true
	virtualenvs-in-project: true

	# Allow loading a cached venv created in a previous run if the lock file is identical
	- name: Load cached venv if it exists
	id: venv-cache
	uses: actions/cache@v3
	with:
	path: .venv
	key: venv-${{ runner.os }}-${{ hashFiles('/poetry.lock', '/pyproject.toml') }}

	- name: Install dependencies
	if: steps.venv-cache.outputs.cache-hit != 'true'
	run: poetry install --no-interaction

	- name: Check format with black
	run: poetry run black --check .

	- name: Check style with flake8
	run: poetry run flake8 .

	- name: Check import sorting with isort
	run: poetry run isort --check .

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