message: fix a grpc bug
diff: +# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
  +#
  +# Licensed under the Apache License, Version 2.0 (the "License");
  +# you may not use this file except in compliance with the License.
  +# You may obtain a copy of the License at
  +#
  +# http://www.apache.org/licenses/LICENSE-2.0
  +#
  +# Unless required by applicable law or agreed to in writing, software
  +# distributed under the License is distributed on an "AS IS" BASIS,
  +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  +# See the License for the specific language governing permissions and
  +# limitations under the License.
  +
  import sys
  import os
  -
  +import numpy as np
  import google.protobuf.text_format
  from .proto import general_model_config_pb2 as m_config
  @@ -9,6 +23,7 @@ sys.path.append(
  os.path.join(os.path.abspath(os.path.dirname(__file__)), 'proto'))
  from .proto import multi_lang_general_model_service_pb2_grpc
  +
  class MultiLangServerServiceServicer(multi_lang_general_model_service_pb2_grpc.
  MultiLangGeneralModelServiceServicer):
  def __init__(self, model_config_path_list, is_multi_model, endpoints):
  @@ -155,7 +170,8 @@ class MultiLangServerServiceServicer(multi_lang_general_model_service_pb2_grpc.
  # This porcess and Inference process cannot be operate at the same time.
  # For performance reasons, do not add thread lock temporarily.
  timeout_ms = request.timeout_ms
  - self._init_bclient(self.model_config_path_list, self.endpoints_, timeout_ms)
  + self._init_bclient(self.model_config_path_list, self.endpoints_,
  + timeout_ms)
  resp = multi_lang_general_model_service_pb2.SimpleResponse()
  resp.err_code = 0
  return resp
  