code: def can_release(self) -> bool:
      if self.keep_gathered:
          return False
      else:
          return (
              self.tensor_state_cnter[TensorState.HOLD]
              + self.tensor_state_cnter[TensorState.HOLD_AFTER_BWD]
              == self.num_tensors
          )
  
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 7 for calling the Chunk obj's underlying member method code with example usage: obj.can_release() and returns: False, unknown