def is_dynamic(self):
        return issubclass(self.model_type, db.Expando)
send a status update to the conductor.
dataset/ETHPy150Open jahlborn/appengine-rest-server/src/main/python/rest/__init__.py/ModelHandler.is_dynamic--crossover with--dataset/ETHPy150Open openstack/solum/solum/worker/handlers/default.py/job_update_notification