class_docstr: Batch Sampler class for multipack
class_docstr_tok: ["Batch","Sampler","class","for","multipack"]
code: def efficiency(self):
      return self.eff_total_used / self.eff_total_slots
  
file_path: axolotl/src/axolotl/utils/samplers/multipack.py
imports: import logging
  import math
  import os
  from typing import Any, Iterable, List, Union
  import numba
  import numpy
  from torch.utils.data import BatchSampler, Sampler
label_desc: Use image node_id 6 for calling the MultipackBatchSampler obj's underlying member method code with example usage: obj.efficiency() and returns: unknown