Define metadata return types #315

	name: Lint & Test

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- '*'

	jobs:
	lint_test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout 🏷️
	uses: actions/checkout@v2

	- name: Install Python 🐍
	uses: actions/setup-python@v2
	with:
	python-version: '3.8'
	architecture: 'x64'

	- name: Install dependencies ⚙️
	run: \|
	python -m pip install --upgrade pip
	pip install .[dev]

	- name: Log Python environment ✏️
	run: \|
	pip freeze

	- name: black ◼️
	run: invoke black

	- name: flake8 ❄️
	run: invoke flake8

	- name: mypy 🧐
	run: invoke mypy

	- name: pytest tests 👓
	run: \|
	pushd test/
	invoke test
	popd

	- name: pytest benchmark 📈
	run: invoke benchmark

	- name: sphinx build 🐪
	run: invoke docbuild

	- name: check-manifest 📰
	run: check-manifest

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