code: def set_exception(self, exception):
      self._exc = exception
      self._event.set()
  
imports: import base64
  import http.server
  import select
  import socket
  import socketserver
  import threading
  from urllib.request import urlopen
label_desc: Use image node_id 4 for calling the Future obj's underlying member method code with example usage: obj.set_exception(exception) without return types