code: public static void unwrapResponse(Protocol.Response response) throws AlluxioStatusException {
      Status status = ProtoUtils.fromProto(response.getStatus());
      if (status != Status.OK) {
        throw AlluxioStatusException.from(status.withDescription(response.getMessage()));
      }
    }
docs: Unwraps a {@link alluxio.proto.dataserver.Protocol.Response}.
  
  @param response the response