Add default identity transform #185

	name: Test Python package

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	max-parallel: 4
	matrix:
	python-version: ["3.9", "3.10"]

	steps:
	- uses: actions/checkout@v1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -e ".[dev]"
	- name: Formatting
	run: \|
	black --check .
	mypy --ignore-missing-imports .
	- name: Test with pytest
	run: \|
	pytest

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