code: def get_stat(self):
      return self.count, self.total / self.count
  
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 4 for calling the Timer obj's underlying member method code with example usage: obj.get_stat() and returns: self,  unknown