Changed with_argparser() and as_subcommand_to() to accept either an A… #990

	# For documentation on GitHub Actions Workflows, see:
	# https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions
	name: CI

	on: [push, pull_request]

	jobs:
	ci:
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
	fail-fast: false
	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v4 # https://github.com/actions/checkout
	with:
	# Only a single commit is fetched by default, for the ref/SHA that triggered the workflow.
	# Set fetch-depth: 0 to fetch all history for all branches and tags.
	fetch-depth: 0 # Needed for setuptools_scm to work correctly
	- name: Set up Python
	uses: actions/setup-python@v4 # https://github.com/actions/setup-python
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install python prerequisites
	run: pip install -U --user pip setuptools setuptools-scm nox
	- name: Run tests and post coverage results
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: python -m nox --non-interactive --session tests-${{ matrix.python-version }} # Run nox for a single version of Python

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