fix handling of () shape #30

	name: PyTest
	on: push

	jobs:
	test:
	runs-on: ubuntu-latest
	timeout-minutes: 10

	steps:
	- name: Check out repository code
	uses: actions/checkout@v2
	- name: Switch to Current Branch
	run: git checkout ${{ env.BRANCH }}

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.x"
	cache: 'pip'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip setuptools wheel
	- name: Install package
	run: \|
	python -m pip install -e .
	- name: Run tests
	run: \|
	python -m pip install pytest
	pytest test

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