) {
            containers.push(this);
        });
        dragula(containers, {
            isContainer: function (el) {
                return false; // only elements in drake.containers will be taken into account
            },
            moves: function (el, source, handle, sibling) {
                return true; // elements are always draggable by default
            },
            accepts: function (el, target, source, sibling) {
                return true; // elements can be dropped in any of the `