code: def execute(cmd, env=None):
      import ignite
  
      env = dict(os.environ) if env is None else env
      env["PYTHONPATH"] = f"{os.path.dirname(ignite.__path__[0])}"
      process = subprocess.Popen(
          cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env
      )
      process.wait()
      if process.returncode != 0:
          print(str(process.stdout.read()) + str(process.stderr.read()))
          raise subprocess.CalledProcessError(
              returncode=process.returncode,
              cmd=cmd,
              stderr=process.stderr.read(),
          )
      return str(process.stdout.read()) + str(process.stderr.read())
  
imports: import os
  import subprocess
  import sys
  from pathlib import Path
  import pytest
  import torch
  from packaging.version import Version
  import ignite.distributed
  from ignite.distributed.utils import has_hvd_support, has_native_dist_support, has_xla_support
label_desc: Use image node_id 3 for calling a global function with example usage: execute(cmd, env) and returns: unknown