@Override
        public Traversal<Vertex, String> get_g_V_chooseXlabelX_optionXblah__outXknowsXX_optionXbleep__outXcreatedXX_optionXnone__identityX_name() {
            return g.V().choose(label())
                    .option("blah", out("knows"))
                    .option("bleep", out("created"))
                    .option(Pick.none, identity()).values("name");
        }
@author Marko A. Rodriguez (http://markorodriguez.com)
@author Joshua Shinavier (http://fortytwo.net)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/branch/ChooseTest.java