code: def render(self) -> widgets.VBox:
      items = [self.content["top"].render()]
      if self.content["bottom"] is not None:
          items.append(self.content["bottom"].render())
  
      return widgets.VBox(items)
  
imports: from ipywidgets import widgets
  from ydata_profiling.report.presentation.core import Variable
label_desc: Use image node_id 1 for calling the WidgetVariable obj's underlying member method code with example usage: obj.render() and returns: widgets