def METHOD_NAME():
    """get_data_model should return the stuff in the `sample_lib.data_model` package"""
    # Local
    import sample_lib
    cdm = get_data_model()
    attrs_match = [
        (hasattr(cdm, attr_name) and getattr(cdm, attr_name) == attr_val)
        for attr_name, attr_val in vars(sample_lib.data_model).items()
        if not attr_name.startswith("_")
        and inspect.isclass(attr_val)
        and issubclass(attr_val, DataBase)
    ]
    assert all(attrs_match)