code: def accept(self):
      # XXX can return either an address pair or None
      try:
          conn, addr = self.socket.accept()
      except TypeError:
          return None
      except OSError as why:
          if why.errno in (EWOULDBLOCK, ECONNABORTED, EAGAIN):
              return None
          else:
              raise
      else:
          return conn, addr
  
imports: import select
  import socket
  import sys
  import time
  import warnings
  import os
  from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, EINVAL, ENOTCONN, ESHUTDOWN, EISCONN, EBADF, ECONNABORTED, EPIPE, EAGAIN, errorcode
label_desc: Use image node_id 13 for calling the dispatcher obj's underlying member method code with example usage: obj.accept() and returns: conn,  addr, None, None