code: def _joblib_probe_task():
      # Noop used by the joblib connector to probe when workers are ready.
      pass
  
imports: from __future__ import print_function, division, absolute_import
  import asyncio
  import concurrent.futures
  import contextlib
  import time
  from uuid import uuid4
  import weakref
  from .parallel import parallel_config
  from .parallel import AutoBatchingMixin, ParallelBackendBase
label_desc: Use image node_id 4 for calling a global function with example usage: _joblib_probe_task() without return types