code: def get_ifce(target_ifce):
      ifces = psutil.net_if_addrs()
      ifce = ifces[target_ifce]
  
      for sincaddr in ifce:
          if sincaddr.family == socket.AF_INET:
              return sincaddr
  
      return None
  
imports: import fiber
  import multiprocessing
  import time
  import pytest
  import docker
  import fiber.config
  from fiber.docker_backend import Backend
  from fiber.util import find_ip_by_net_interface
  import psutil
  import ipaddress
  import socket
label_desc: Use image node_id 4 for calling a global function with example usage: get_ifce(target_ifce) and returns: None, sincaddr