class_docstr: Similar to nn.ParameterList, but for buffers
code: def __iter__(self):
      return iter(self._buffers.values())
  
imports: import collections
  import math
  from typing import List
  import torch
  from torch import nn
  from detectron2.config import configurable
  from detectron2.layers import ShapeSpec, move_device_like
  from detectron2.structures import Boxes, RotatedBoxes
  from detectron2.utils.registry import Registry
label_desc: Use image node_id 3 for calling the BufferList obj's underlying member method code with example usage: obj.__iter__() and returns: iter