code: def _find_free_port():
      # Taken from https://github.com/facebookresearch/detectron2/blob/master/detectron2/engine/launch.py
      import socket
  
      sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      sock.bind(("", 0))
      port = sock.getsockname()[1]
      sock.close()
      return port
  
imports: import functools
  import os
  import shutil
  import sys
  import tempfile
  import time
  from pathlib import Path
  import pytest
  import torch
  import torch.distributed
  import ignite.distributed
label_desc: Use image node_id 10 for calling a global function with example usage: _find_free_port() and returns: port