code: def atomic_save(state_dict: Any, path: str) -> None:
      """
      Like torch.save, but atomic.
  
      Useful for preventing trouble coming from being pre-empted or killed while writing
      to disk. Works by writing to a temporary file, and then renaming the file to the
      final name.
      """
  
      if io_utils.USE_ATOMIC_TORCH_SAVE:
          with open(path + ".tmp", "wb") as f:
              torch.save(state_dict, f)
          os.replace(path + ".tmp", path)
      else:
          with io_utils.PathManager.open(path, "wb") as f:
              torch.save(state_dict, f)
  
imports: import os
  from typing import Union, Optional, Tuple, Any, List, Sized, TypeVar
  import itertools
  from collections import namedtuple
  import parlai.utils.logging
  import parlai.utils.io
  import torch.optim
label_desc: Use image node_id 2 for calling a global function with example usage: atomic_save(state_dict, path) without return types