fix: missing : #173

	name: MyPy

	on: pull_request

	jobs:
	mypy:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ ubuntu-latest, macos-latest, windows-latest ]
	pyversion: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]

	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- name: Setup Python (faster than using Python container)
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.pyversion }}

	- name: Install MyPy
	run: \|
	python -m pip install --upgrade pip
	pip install mypy

	- name: Install pyyaml on python <= 3.9
	if: ${{ matrix.pyversion == '3.8' \|\| matrix.pyversion == '3.9' }}
	run: \|
	pip install wheel
	pip install --no-build-isolation "Cython<3" "pyyaml==5.4.1"

	- name: Install dependencies
	run: pip install -r requirements.txt

	- name: Run MyPy
	run: mypy . --strict --pretty --show-error-codes --show-error-context --install-types --non-interactive

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