code: def _create_stub(server):
      channel = grpc.insecure_channel(server)
      return prediction_service_pb2_grpc.PredictionServiceStub(channel)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import base64
  import functools
  from googleapiclient import discovery
  import grpc
  import numpy
  from tensor2tensor import problems
  from tensor2tensor.data_generators import text_encoder
  from tensor2tensor.utils import cloud_mlengine
  from tensor2tensor.utils import contrib
  import tensorflow.compat.v1
  from tensorflow_serving.apis import predict_pb2
  from tensorflow_serving.apis import prediction_service_pb2_grpc
label_desc: Use image node_id 2 for calling a global function with example usage: _create_stub(server) and returns: prediction_service_pb2_grpc