update #4

	name: Mypy Type Checking

	on:
	push:
	paths:
	- 'src/*/.py'

	pull_request:
	paths:
	- 'src/*/.py'

	jobs:
	mypy:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'

	- name: Cache pip dependencies
	uses: actions/cache@v4
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install mypy

	- name: Run Mypy
	run: mypy src/

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