code: def add(self, time_elapse):
      self.total += time_elapse * 1000
      self.count += 1
  
imports: import logging
  import grpc
  from friesian.example.serving.generated import recall_pb2_grpc, recall_pb2
  import os
  import pandas
  import argparse
  import time
  import threading
  from urllib.parse import urlparse
  from os.path import exists
  from bigdl.dllib.utils import log4Error
label_desc: Use image node_id 3 for calling the Timer obj's underlying member method code with example usage: obj.add(time_elapse) without return types