code: def test_import_with_unavailable_dependencies(
      patch_name, new_fn, to_import, clean_import
  ):
      """This tests simulates unavailability of certain modules by patching the functions that check for their
      availability.
  
      When the patch is applied and the module is imported, it should not raise any errors. The list of cases to check was
      compiled by finding else branches of top-level if statements checking for the availability of the module and
      performing imports.
  
      """
      with mock.patch(patch_name, new=new_fn):
          importlib.import_module(to_import)
  
file_path: pytorch-lightning/tests/tests_pytorch/utilities/test_imports.py
imports: import importlib
  import subprocess
  import sys
  from textwrap import dedent
  from unittest import mock
  import pytest
  from lightning.pytorch.utilities.imports import _OMEGACONF_AVAILABLE
  from lightning_utilities.core.imports import RequirementCache
  from torch.distributed import is_available
  from tests_pytorch.helpers.runif import RunIf
label_desc: Use image node_id 4 for calling a global function with example usage: test_import_with_unavailable_dependencies(patch_name, new_fn, to_import, clean_import) without return types