add graph neural networks #360

	---
	name: CI

	on:
	push:
	branches: ["main","github-actions"]
	pull_request:
	branches: ["main"]
	workflow_dispatch:

	jobs:
	tests:
	name: "Python ${{ matrix.python-version }}"
	runs-on: "ubuntu-latest"

	strategy:
	matrix:
	# python-version: ["3.7", "3.8", "3.9"]
	python-version: ["3.8", "3.9", "3.10"]

	steps:
	- uses: "actions/checkout@v2"
	- uses: "actions/setup-python@v2"
	- uses: "s-weigand/setup-conda@v1"
	with:
	python-version: "${{ matrix.python-version }}"

	- name: Install solvers
	run: sudo apt-get install -y glpk-utils coinor-cbc

	- name: "Install dependencies"
	run: \|
	set -xe
	python -VV
	python -m site
	python -m pip install --upgrade pip setuptools wheel
	python -m pip install --upgrade coverage[toml] virtualenv tox tox-gh-actions
	conda install -c conda-forge ipopt
	conda install -c conda-forge pyscipopt

	- name: "Run tox targets with lean testing environment for ${{ matrix.python-version }}"
	run: "tox -re leanenv"

	- name: "Run tox targets for ${{ matrix.python-version }}"
	run: "tox"

	# - name: "Run tox notebooks targets for ${{ matrix.python-version }}"
	# run: \|
	# shopt -s globstar
	# tox -e notebooks docs/*/.ipynb

	- name: "Convert coverage"
	run: "python -m coverage xml"

	- name: "Upload coverage to Codecov"
	uses: "codecov/codecov-action@v2"
	with:
	fail_ci_if_error: true

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