def _add_admin_views(self) -> None:
        """
        Registers indexview, utilview (back function), babel views and Security views.
        """
        if self.indexview:
            self._indexview = self.add_view_no_menu(self.indexview)
        self.add_view_no_menu(UtilView)
        self.bm.register_views()
        self.sm.register_views()
        self.openapi_manager.register_views()
        self.menuapi_manager.register_views()

        Registers indexview, utilview (back function), babel views and Security views.
        
flask_appbuilder/base.py