adjusting the positioning of the nodes in threes, corrected proof for… #1335

	name: Lint and test

	on: [push]

	permissions:
	contents: read

	jobs:
	lint_and_test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Install apt dependencies
	run: \|
	sudo apt-get install libcairo2-dev libjpeg8-dev libpango1.0-dev libgif-dev build-essential g++
	- name: Set up Python 3.11
	uses: actions/setup-python@v4
	with:
	python-version: '3.11'
	cache: 'pip'
	- name: Install pip dependencies
	run: \|
	python -m pip install --upgrade pip
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Lint (ruff)
	run: \|
	script/lint
	- name: Types (pyright)
	run: \|
	script/types
	- name: Tests (unittest)
	run: \|
	script/test

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