code: def start(file=None, address=None, browse=True, verbosity=1):
      """Start serving model file at address and open in web browser.
  
      Args:
          file (string): Model file to serve.
          log (bool, optional): Log details to console. Default: False
          browse (bool, optional): Launch web browser, Default: True
          address (tuple, optional): A (host, port) tuple, or a port number.
  
      Returns:
          A (host, port) address tuple.
      """
      return serve(
          file,
          None,
          browse=browse,
          address=address,
          verbosity=verbosity,
      )
  
imports: import errno
  import http.server
  import importlib.util
  import json
  import os
  import random
  import re
  import socket
  import socketserver
  import sys
  import threading
  import time
  import webbrowser
  import urllib.parse
label_desc: Use image node_id 10 for calling a global function with example usage: start(file, address, browse, verbosity) and returns: serve