code: def public_ips():
      """return the IP addresses for this machine that are visible to other machines"""
      return PUBLIC_IPS
  
imports: import os
  import re
  import socket
  import subprocess
  from subprocess import Popen, PIPE
  from warnings import warn
label_desc: Use image node_id 14 for calling a global function with example usage: public_ips() and returns: PUBLIC_IPS