code: def open_socket(port, host="localhost"):
      """Opens a socket to host:port and reconfigures internal channels."""
      global __channel_in
      global __channel_out
      try:
          sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
          sock.bind(("", 0))
          sock.connect((host, port))
          __channel_in = sock.makefile("r")
          __channel_out = sock.makefile("w")
      except (socket.error, OverflowError, ValueError) as e:
          print("Error making socket: " + str(e), file=sys.stderr)
          sys.exit(1)
  
imports: from __future__ import print_function
  import json
  import sys
  import socket
  import itertools
  from .None import functions
  from .None import parallel
  import math
  import multiprocessing
  import threading
label_desc: Use image node_id 8 for calling a global function with example usage: open_socket(port, host) without return types