Allow `typing.Self` as a hint-type. #134

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: tests

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	build:

	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.9", "3.10", "3.11", "3.12-dev"]
	os: [ubuntu-latest, windows-latest, macos-latest]

	runs-on: ${{ matrix.os }}

	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	with:
	fetch-depth: 1

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	cache: pip
	cache-dependency-path: requirements-tests.txt

	- name: Install dependencies
	run: pip install -r requirements-tests.txt

	- name: Test with pytest
	run: pytest

	- name: Check formatting with black
	uses: psf/black@stable
	with:
	src: "./structured"

	- name: Check formatting with isort
	run: isort structured

	- name: Lint with flake8
	run: \|
	# Use the flake8-pyproject entry point to pull in config from
	# pyproject.toml
	flake8p structured

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