@Override
        public Traversal<Vertex, String> get_g_withSideEffectXx_setX_V_both_both_sideEffectXstoreXxX_byXnameXX_capXxX_unfold() {
            return g.withSideEffect("x",new HashSet<>()).V().both().both().sideEffect(__.store("x").by("name")).cap("x").unfold();
        }
@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/sideEffect/SideEffectTest.java