code: def _safe_check_pinned(tensor: torch.Tensor) -> bool:
      """Check whether or not a tensor is pinned. If torch cannot initialize cuda, returns False instead of error."""
      try:
          return torch.cuda.is_available() and tensor.is_pinned()
      except RuntimeError:
          return False
  
imports: from __future__ import annotations
  import warnings
  from dataclasses import asdict, dataclass
  from typing import Tuple
  import numpy
  import torch
  from hivemind.proto.runtime_pb2 import CompressionType
  from hivemind.utils.serializer import MSGPackSerializer
label_desc: Use image node_id 2 for calling a global function with example usage: _safe_check_pinned(tensor) and returns: unknown, False