docstr: Return the total number of elements in bucket
  
  Returns:
      int: the total number of elements in bucket
docstr_tok: ["Return","the","total","number","of","elements","in","bucket","Returns",":","int",":","the","total","number","of","elements","in","bucket"]
code: def num_elements_in_bucket(self) -> int:
      """Return the total number of elements in bucket
  
      Returns:
          int: the total number of elements in bucket
      """
  
      return self._num_elements_in_bucket
  
file_path: ColossalAI/colossalai/zero/low_level/bookkeeping/bucket_store.py
imports: from typing import Dict
  import torch
  from torch import Tensor
  from torch._utils import _flatten_dense_tensors
  from torch.distributed import ProcessGroup
  from .base_store import BaseStore
label_desc: Use image node_id 2 for calling the BucketStore obj's underlying member method code with example usage: obj.num_elements_in_bucket() and returns: self