Add imgviz.io.lblsave #120

	name: lint

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	lint:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.9]
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0
	submodules: true
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	pip install -r requirements-dev.txt
	- name: Lint
	run: \|
	ruff format --check
	ruff check
	- name: Mypy
	run: \|
	pip install mypy types-PyYAML
	mypy -p imgviz --ignore-missing-imports

Provide feedback