code: def deployment(mii_config, expected_failure):
      if expected_failure is not None:
          with pytest.raises(expected_failure) as excinfo:
              mii.serve(mii_config=mii_config)
          yield excinfo
      else:
          client = mii.serve(mii_config=mii_config)
          yield client
          client.terminate_server()
          time.sleep(1)
  
imports: import pytest
  import time
  import os
  import mii
  from types import SimpleNamespace
  from typing import Union
  from deepspeed.launcher.runner import DLTS_HOSTFILE
  import deepspeed.comm
label_desc: Use image node_id 18 for calling a global function with example usage: deployment(mii_config, expected_failure) without return types