def METHOD_NAME(
    self
) -> None:
    for clazz in self._get_base_or_versioned_model_child_classes():
        try:
            self.assertIn(
                clazz.get_deletion_policy(), base_models.DELETION_POLICY)
        except NotImplementedError:
            self.fail(msg='get_deletion_policy is not defined for %s' % (
                clazz.__name__))