@Override
        public Traversal<Vertex, Map<String, List<Vertex>>> get_g_V_group_byXlabelX_byXname_order_byXdescX_foldX() {
            return g.V().<String, List<Vertex>>group().by(T.label).by(__.values("name").order().by(desc).fold());
        }
@author Marko A. Rodriguez (http://markorodriguez.com)
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/OrderTest.java