docstr: Release the usable chunk. It's an operation done in CUDA.
docstr_tok: ["Release","the","usable","chunk",".","It","'s","an","operation","done","in","CUDA","."]
code: def release_chunk(self):
      """Release the usable chunk. It's an operation done in CUDA."""
      # sanity check
      assert self.chunk_temp is None
  
      if self.is_gathered:
          self.__scatter()
  
imports: from dataclasses import dataclass
  from enum import Enum
  from typing import Dict, List, Optional
  import torch
  import torch.distributed
  from torch.distributed import ProcessGroup
  from colossalai.utils import get_current_device
  from colossalai.utils.device import IS_NPU_AVAILABLE
label_desc: Use image node_id 15 for calling the Chunk obj's underlying member method code with example usage: obj.release_chunk() without return types