Allow batch sampler to not have a .sampler attribute (#20514) #47966

	name: Code check

	on:
	push:
	branches: [master, "release/*"]
	pull_request:
	branches: [master, "release/*"]
	paths:
	- ".actions/*"
	- ".github/workflows/code-checks.yml"
	- "requirements/**"
	- "src/**"
	- "pyproject.toml" # includes mypy config
	- "!requirements/docs.txt"
	- "!requirements/*/docs.txt"
	- "!*.md"
	- "!*/.md"

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}-${{ github.head_ref }}
	cancel-in-progress: ${{ github.event_name == 'pull_request' }}

	defaults:
	run:
	shell: bash

	jobs:
	mypy:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: "3.11"

	- name: Mypy cache
	uses: actions/cache@v4
	with:
	path: .mypy_cache
	key: mypy-${{ hashFiles('requirements/typing.txt') }}

	- name: Install dependencies
	env:
	FREEZE_REQUIREMENTS: 1
	timeout-minutes: 20
	run: \|
	pip install -e '.[pytorch-all,fabric-all]' -r requirements/typing.txt
	pip list

	- name: Check typing
	run: mypy

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