code: def get_selected(self):
          
  
          success, model, aiter = super(TreeSelection, self).get_selected()
          if success:
              return (model, aiter)
          else:
              return (model, None)
docs: :returns:
              :model: the :obj:`Gtk.TreeModel`
              :iter: The :obj:`Gtk.TreeIter` or :obj:`None`
  
          :rtype: (**model**: :obj:`Gtk.TreeModel`, **iter**: :obj:`Gtk.TreeIter` or :obj:`None`)
  
          {{ docs }}