    /*

    Siesta 5.3.0
    Copyright(c) 2009-2019 Bryntum AB
    https://bryntum.com/contact
    https://bryntum.com/products/siesta/license

    */
    Role('Ariadne.QueryFinder.TreeWalker', {

        methods : {

            getParent : function (el) {
                throw new Error("Abstract method called: `getParent`")
            },

            contains : function (parentEl, childEl) {
                throw new Error("Abstract method called: `contains`")
            }
        }
    });