code: def clean_context() -> t.Generator[contextlib.ExitStack, None, None]:
      """
      Create a ExitStack to cleanup contextmanager.
      This fixture is available to all tests.
      """
      stack = contextlib.ExitStack()
      yield stack
      stack.close()
  
imports: from __future__ import annotations
  import contextlib
  import os
  import tempfile
  import typing
  from typing import TYPE_CHECKING
  import psutil
  import pytest
  from pytest import MonkeyPatch
  import bentoml
  from bentoml._internal.configuration import BENTOML_VERSION
  from bentoml._internal.configuration import clean_bentoml_version
  from bentoml._internal.configuration.containers import BentoMLContainer
  from bentoml._internal.models import ModelContext
  from bentoml._internal.utils import LazyLoader
  from bentoml._internal.utils import validate_or_create_dir
label_desc: Use image node_id 14 for calling a global function with example usage: clean_context() without return types