code: def img_size(self, o) -> ImgSize:
      width = int(self._size.find("width").text)
      height = int(self._size.find("height").text)
      return ImgSize(width=width, height=height)
  
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 9 for calling the VOCBBoxParser obj's underlying member method code with example usage: obj.img_size(o) and returns: ImgSize