code: def __getitem__(self: Box, i):
      return self.children[i]
  
imports: from __future__ import annotations
  from ..torch_basics import *
  from ..data.all import *
  from .core import *
  from fastcore.parallel import *
  from ipywidgets import HBox, VBox, widgets, Button, Checkbox, Dropdown, Layout, Box, Output, Label, FileUpload
label_desc: Use image node_id 1 for calling a global function with example usage: __getitem__(i) and returns: self