def __reserve_keys_hook(self, rpc):
    self.check_rpc_success(rpc)
    if rpc.user_data is not None:
      return rpc.user_data(rpc.response)
Internal get_result_hook for _reserve_keys.
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/datastore/datastore_rpc.py/Connection.__reserve_keys_hook