code: def box(self):
      boxes = [child.box for child in self.children]
      x_min = min(box[0][0] for box in boxes)
      x_max = max(box[0][1] for box in boxes)
      y_min = min(box[1][0] for box in boxes)
      y_max = max(box[1][1] for box in boxes)
  
      return [[x_min, x_max], [y_min, y_max]]
  
imports: import numpy
  import tensorflow
  import lucid.modelzoo.vision_models
  import lucid.optvis.objectives
  import lucid.optvis.param
  import lucid.optvis.render
  from lucid.misc.io import show, load
  from lucid.misc.io.showing import _image_url, _display_html
  from collections import defaultdict
  from lucid.scratch.pretty_graphs.graph import *
label_desc: Use image node_id 5 for calling the FragmentContainer obj's underlying member method code with example usage: obj.box() and returns: list