def get_messages(self, thread_id, max_created_usec=None, count=None):
        return self._fetch_json(
            "messages/" + thread_id, max_created_usec=max_created_usec,
            count=count)
For a list of index entries that have the same entity, lock the entity
dataset/ETHPy150Open quip/quip-api/python/quip.py/QuipClient.get_messages--crossover with--dataset/ETHPy150Open AppScale/appscale/AppDB/groomer.py/DatastoreGroomer.lock_and_delete_kind_index