added limited recursion protection by avoiding going into Diagrams #79

	name: build

	on: [push]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.8", "3.9", "3.10", "3.11"]

	steps:
	- uses: actions/checkout@v3
	- name: Install Graphviz
	run: \|
	sudo apt-get update
	sudo apt-get install graphviz
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install ruff pytest coverage
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Lint with ruff
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	ruff --output-format=github --select=E9,F63,F7,F82 --target-version=py38 .
	# default set of ruff rules with GitHub Annotations
	ruff --output-format=github --target-version=py38 .
	- name: Test with PyTest and generate coverage report
	run: \|
	coverage run -m --omit="/.tox/,/distutils/,tests/*" pytest
	coverage lcov
	- name: Coveralls
	uses: coverallsapp/github-action@v2
	- name: Archive Artifacts
	if: always()
	uses: actions/upload-artifact@v4
	with:
	name: models-${{ matrix.python-version }}
	path: \|
	tests/models/*-test.bpmn

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