code: def is_distributed_available() -> bool:
      return _HVD is not None and (
          _HVD.is_initialized() or os.environ.get("HOROVOD_RANK")
      )
  
imports: import os
  from typing import Any, List, Optional
  import torch
label_desc: Use image node_id 4 for calling a global function with example usage: is_distributed_available() and returns: unknown