code: def setUp(self):
      self.serverSocket = socket.create_server(("127.0.0.1", 0))
      self.connections = [self.serverSocket]
  
imports: import errno
  import os
  import select
  import socket
  import time
  import unittest
  from test import support
label_desc: Use image node_id 1 for calling the TestEPoll obj's underlying member method code with example usage: obj.setUp() without return types