@Override
        public Traversal<Vertex, Map<String, Vertex>> get_g_V_matchXa_created_b__a_repeatXoutX_timesX2XX_selectXa_bX() {
            return g.V().match(
                    as("a").out("created").as("b"),
                    __.<Vertex>as("a").repeat(out()).times(2).as("b")).<Vertex>select("a", "b");
        }
@author Joshua Shinavier (http://fortytwo.net)
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/MatchTest.java