code: def __init__(self, ip_port, Handler):
      Handler(MockRequest(), ip_port[0], self)
  
file_path: altair/altair/utils/server.py
imports: import sys
  import threading
  import webbrowser
  import socket
  from http import server
  from io import BytesIO
  import itertools
  import random
label_desc: Use image node_id 1 to create a new MockServer object  with example: obj = MockServer(ip_port, Handler)