code: def __iter__(self):
      yield from self._intersection
  
imports: import xml.etree.ElementTree
  from icevision.imports import *
  from icevision.utils import *
  from icevision.core import *
  from icevision.parsers.parser import *
label_desc: Use image node_id 3 for calling the VOCMaskParser obj's underlying member method code with example usage: obj.__iter__() without return types