code: def _clear_cuda_memory() -> None:
      # strangely, the attribute function be undefined when torch.compile is used
      if _TORCH_GREATER_EQUAL_2_0 and hasattr(
          torch._C, "_cuda_clearCublasWorkspaces"
      ):
          # https://github.com/pytorch/pytorch/issues/95668
          torch._C._cuda_clearCublasWorkspaces()
      torch.cuda.empty_cache()
  
imports: import os
  import warnings
  from contextlib import contextmanager
  from functools import lru_cache
  from typing import Generator, List, Optional, Union, cast
  import torch
  from typing_extensions import override
  from lightning.fabric.accelerators.accelerator import Accelerator
  from lightning.fabric.accelerators.registry import _AcceleratorRegistry
  from lightning.fabric.utilities.imports import _TORCH_GREATER_EQUAL_2_0
  from lightning.fabric.utilities.rank_zero import rank_zero_info
label_desc: Use image node_id 13 for calling a global function with example usage: _clear_cuda_memory() without return types