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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def delete_for_obj(self, entity_model_obj):
 """ Delete the entities associated with a model object. """

        return self.filter(
            entity_type=ContentType.objects.get_for_model(
                entity_model_obj, for_concrete_model=False), entity_id=entity_model_obj.id).delete(
            force=True)