Fix typing errors #5021

	name: Linters

	on:
	- push
	- pull_request

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- name: Set up environment
	uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.8'
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install --upgrade tox
	- name: Run linters
	run: \|
	tox -e lint

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