Add type hinting to the code base #504

	name: Python package

	on: [push, pull_request]

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v6
	- name: Set up Python
	uses: actions/setup-python@v6
	with:
	python-version: '3.12'
	- name: Install ruff and mypy
	run: \|
	python -m pip install --upgrade pip
	pip install .
	pip install types-python-dateutil
	pip install ruff mypy
	- name: Run ruff
	run: \|
	ruff check .
	- name: Run mypy
	run: \|
	mypy src/

	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version:
	- '3.10'
	- '3.11'
	- '3.12'
	- '3.13'

	steps:
	- uses: actions/checkout@v6
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v6
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install .
	- name: Test with pytest
	run: \|
	pip install ".[test]"
	pytest

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