code: def get_port(self):
      return self._port
  
imports: import random
  import socket
  import struct
  import threading
  import cloudpickle
  import psutil
  from six.moves import queue, socketserver
  from bluefog.run.horovodrun.common.util import secret
label_desc: Use image node_id 7 for calling the BasicService obj's underlying member method code with example usage: obj.get_port() and returns: self