':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 }}'

def get_selected(self):

    (success, model, aiter) = super(TreeSelection, self).get_selected()
    if success:
        return (model, aiter)
    else:
        return (model, None)
