code: def load_fixture(fixture_path: str,
                   fixture_key: str,
                   normalize_fn: Callable[..., Any]=identity) -> Dict[str, Any]:
      
      file_fixtures = load_json_fixture(fixture_path)
      fixture = normalize_fn(file_fixtures[fixture_key])
      return fixture
docs: Loads a specific fixture from a fixture file, optionally passing it through
      a normalization function.