def METHOD_NAME(self):
    """Download models and return whether successful as boolean"""
    def on_download_error(msg, msg2):
        dialog = Gtk.MessageDialog(self, 0, Gtk.MessageType.ERROR,
                                   Gtk.ButtonsType.CANCEL, msg)
        dialog.format_secondary_text(msg2)
        dialog.run()
        dialog.destroy()
    return download_models(on_error=on_download_error)