   add_component: (component) ->
     @component_list.add_component component
 
+  # DEPRECATED. only used by div
   add_rendered: (rendered) ->
     @add_renderable _lead_render: -> rendered
 

    ->
      restoring_context fn, arguments

  add_renderable: (renderable) ->
    @add_component component_for_renderable renderable
    ignore


  empty: -> @component_list.empty()

  # DEPRECATED
  div: (contents) ->
    $div = $('<div/>')
    if contents?
