Allow None as the type in the description generator #176

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Continuous Integration

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.7, 3.8, 3.9, "3.10"]

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	with:
	submodules: true

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install
	run: \|
	sudo apt-get update && sudo apt-get -y install libopenmpi-dev openmpi-bin graphviz graphviz-dev
	pip install .[all]

	- name: Tests
	run: \|
	pytest --cov=ceci


	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v1

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