code: def test_load_schema_as_config(hydra_restore_singletons: Any) -> None:
      """
      Load structured config as a configuration
      """
      ConfigStore.instance().store(
          name="config", node=TopLevelConfig, provider="this_test"
      )
  
      ConfigStore.instance().store(
          name="db/mysql", node=MySQLConfig, provider="this_test"
      )
  
      config_loader = ConfigLoaderImpl(
          config_search_path=create_config_search_path(None)
      )
      cfg = config_loader.load_configuration(
          config_name="config", overrides=[], run_mode=RunMode.RUN
      )
  
      with open_dict(cfg):
          del cfg["hydra"]
      assert cfg == {
          "normal_yaml_config": "???",
          "db": {
              "driver": MISSING,
              "host": MISSING,
              "port": MISSING,
              "user": MISSING,
              "password": MISSING,
          },
      }
  
imports: import re
  from dataclasses import dataclass, field
  from textwrap import dedent
  from typing import Any, List
  from omegaconf import MISSING, OmegaConf, ValidationError, open_dict
  from pytest import mark, param, raises, warns
  from hydra import version
  from hydra._internal.config_loader_impl import ConfigLoaderImpl
  from hydra._internal.utils import create_config_search_path
  from hydra.core.config_store import ConfigStore, ConfigStoreWithProvider
  from hydra.core.override_parser.overrides_parser import OverridesParser
  from hydra.core.utils import env_override, setup_globals
  from hydra.errors import ConfigCompositionException, HydraException, MissingConfigException
  from hydra.test_utils.test_utils import chdir_hydra_root
  from hydra.types import RunMode
  from tests.instantiate import UserGroup
label_desc: Use image node_id 4 for calling a global function with example usage: test_load_schema_as_config(hydra_restore_singletons) without return types