window1
  "window"
  index: 0
  state: enabled resizable sensitive showing visible
  toolkit: gtk
  window-type: normal
  <AtkComponent>
  layer: window
  alpha: 1
  expander1
    "toggle button"
    parent: window1
    index: 0
    name: Reveal this
    state: enabled expandable focusable sensitive showing visible
    toolkit: gtk
    <AtkComponent>
    layer: widget
    alpha: 1
    <AtkAction>
    action 0 name: activate
    action 0 description: Activates the expander