docstr: Make the chunk usable for the parameters inside it. It's an operation done in CUDA.
docstr_tok: ["Make","the","chunk","usable","for","the","parameters","inside","it",".","It","'s","an","operation","done","in","CUDA","."]
code: def access_chunk(self):
      """Make the chunk usable for the parameters inside it. It's an operation done in CUDA."""
      # sanity check
      assert self.chunk_temp is None
  
      if not self.is_gathered:
          self.__gather()
      self.__update_tensors_ptr()
  
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 14 for calling the Chunk obj's underlying member method code with example usage: obj.access_chunk() without return types