code: def num_lookup(self, name: str) -> Tuple[int, grpc.StatusCode, str]:
      if name not in self.nums:
          self.nums[name] = len(self.nums)
          code = grpc.StatusCode.INVALID_ARGUMENT
          message = f"{name} not found, adding to nums."
      else:
          code = grpc.StatusCode.OK
          message = f"{name} found."
      return self.nums[name], code, message
  
imports: import ray
  from ray import serve
  from ray.serve.config import gRPCOptions
  import time
  from typing import Generator
  from user_defined_protos_pb2 import UserDefinedMessage, UserDefinedMessage2, UserDefinedResponse, UserDefinedResponse2
  import ray
  from ray import serve
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage
  import grpc
  from ray.serve.generated.serve_pb2_grpc import RayServeAPIServiceStub
  from ray.serve.generated.serve_pb2 import HealthzRequest, ListApplicationsRequest
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage2
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage
  import requests
  import torch
  from typing import List
  from PIL import Image
  from io import BytesIO
  from torchvision import transforms
  from user_defined_protos_pb2 import ImageClass, ImageData
  from ray import serve
  from ray.serve.handle import DeploymentHandle
  import grpc
  from user_defined_protos_pb2_grpc import ImageClassificationServiceStub
  from user_defined_protos_pb2 import ImageData
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage
  from user_defined_protos_pb2 import UserDefinedMessage, UserDefinedResponse
  from ray import serve
  from ray.serve.grpc_util import RayServegRPCContext
  import grpc
  from typing import Tuple
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage
label_desc: Use image node_id 2 for calling the GrpcDeployment obj's underlying member method code with example usage: obj.num_lookup(name) and returns: self,  code,  message