code: def random_port() -> int:
      with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
          s.bind(("", 0))
          return s.getsockname()[1]
  
imports: import os
  import socket
  import subprocess
  import sys
  import time
label_desc: Use image node_id 1 for calling a global function with example usage: random_port() and returns: s