code: def request(
      self,
      data_sample,
      input_name: str,
      model_name: str,
      signature_name: str,
      callback: Callable = None,
      grpc_timeout: int = 20,
      async_: bool = False,
  ):
      stub = self.stub
      response = grpc_request(
          stub,
          data_sample,
          input_name,
          model_name,
          signature_name,
          callback,
          grpc_timeout,
          async_,
      )
      return response
  
file_path: chitra/chitra/serve/tf_serving/client.py
imports: from typing import Any, Callable, Optional
  import grpc
  import tensorflow
  from tensorflow_serving.apis import predict_pb2, prediction_service_pb2_grpc
label_desc: Use image node_id 2 for calling the GrpcClient obj's underlying member method code with example usage: obj.request(data_sample, input_name, model_name, signature_name, callback, grpc_timeout, async_) and returns: response