Fix expected return type in test. #188

	name: Python Tests

	on: [push, pull_request]

	jobs:

	checks:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	toxenv:
	- format
	- mypy
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-python@v3
	with:
	python-version: "3.10"
	- name: Install dependencies
	run: pip install tox
	- name: Validate formatting
	run: tox -e ${{ matrix.toxenv }}

	test:
	runs-on: ubuntu-latest
	strategy:
	max-parallel: 4
	fail-fast: false
	matrix:
	python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install tox tox-gh-actions
	- name: Test with tox
	run: tox -e py

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