code: def get_local_host_intfs():
      return set(psutil.net_if_addrs().keys())
  
file_path: bluefog/bluefog/run/network_util.py
imports: import concurrent.futures
  import io
  import os
  import re
  import socket
  import psutil
  from bluefog.run.horovodrun.common.util import safe_shell_exec
label_desc: Use image node_id 5 for calling a global function with example usage: get_local_host_intfs() and returns: set