code: def main():
      argparser = argparse.ArgumentParser(description=__doc__)
      argparser.add_argument(
          "--host",
          metavar="H",
          default="127.0.0.1",
          help="IP of the host server (default: 127.0.0.1)",
      )
      argparser.add_argument(
          "-p",
          "--port",
          metavar="P",
          default=2000,
          type=int,
          help="TCP port to listen to (default: 2000)",
      )
      argparser.add_argument(
          "--timeout",
          metavar="T",
          default=10.0,
          type=float,
          help="time-out in seconds (default: 10)",
      )
      args = argparser.parse_args()
  
      t0 = time.time()
  
      while args.timeout > (time.time() - t0):
          try:
              client = carla.Client(args.host, args.port)
              client.set_timeout(0.1)
              print(
                  "CARLA %s connected at %s:%d."
                  % (client.get_server_version(), args.host, args.port)
              )
              return 0
          except RuntimeError:
              pass
  
      print("Failed to connect to %s:%d." % (args.host, args.port))
      return 1
  
imports: import glob
  import os
  import sys
  import carla
  import argparse
  import time
label_desc: Use image node_id 1 for calling a global function with example usage: main() and returns: int, int