Add has_registered_events method to Engine class #54

	name: Type Checking

	on:
	push:
	branches:
	- master
	- "..*"
	paths:
	- "ignite/**"
	- "examples/**.py"
	- "tests/ignite/**"
	- "requirements-dev.txt"
	- "pyproject.toml"
	- "mypy.ini"
	- ".github/workflows/typing-checks.yml"
	pull_request:
	paths:
	- "ignite/**"
	- "examples/**.py"
	- "tests/ignite/**"
	- "requirements-dev.txt"
	- "pyproject.toml"
	- "mypy.ini"
	- ".github/workflows/typing-checks.yml"
	workflow_dispatch:

	concurrency:
	# <workflow_name>-<branch_name>-<true \|\| commit_sha (if branch is protected)>
	group: typing-${{ github.ref_name }}-${{ !(github.ref_protected) \|\| github.sha }}
	cancel-in-progress: true

	jobs:
	mypy:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.9", "3.13"]
	pytorch-channel: [pytorch]

	steps:
	- uses: actions/checkout@v5

	- name: Get year & week number
	id: get-date
	run: \|
	echo "date=$(/bin/date "+%Y-%U")" >> $GITHUB_OUTPUT

	- uses: astral-sh/setup-uv@v6
	with:
	version: "latest"
	python-version: ${{ matrix.python-version }}
	activate-environment: true
	enable-cache: true
	cache-suffix: "${{ steps.get-date.outputs.date }}-typing-${{ runner.os }}-${{ matrix.python-version }}"
	cache-dependency-glob: \|
	**/requirements-dev.txt
	**/pyproject.toml

	- name: Install PyTorch
	run: uv pip install torch torchvision --index-url https://download.pytorch.org/whl/cpu

	- name: Install dependencies
	run: \|
	uv pip install -r requirements-dev.txt
	uv pip install .
	uv pip install mypy

	- name: Run MyPy type checking
	run: mypy

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