Add missing type annotation #324

	name: linters

	on:
	push:
	branches: [main]
	tags: v*
	pull_request:

	jobs:
	run_linters:

	runs-on: ubuntu-latest

	steps:

	- uses: actions/checkout@v1

	- name: Set up Python
	uses: actions/[email protected]
	with:
	python-version: "3.10"

	- name: Prepare project for development
	run: \|
	python -m pip install poetry
	python -m poetry install

	- name: Run linters
	run: \|
	python -m poetry run invoke lint

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