code: def test_get_class_name(config: DictConfig, expected: Any) -> None:
      assert utils._get_cls_name(config) == expected
  
file_path: hydra/tests/test_internal_utils.py
imports: from typing import Any, Callable, Optional
  from omegaconf import DictConfig, OmegaConf
  from pytest import mark, param
  from hydra._internal import utils
  from tests import data
label_desc: Use image node_id 2 for calling a global function with example usage: test_get_class_name(config, expected) without return types