@Override
    protected List<Traversal> getTraversals() {
        return Arrays.asList(
                __.choose(values("name")).option("marko", out()).option(none, in()),
                __.choose(values("name")).option("marko", in()).option(none, out()),
                __.choose(values("name")).option("josh", out()).option(none, in()),
                __.choose(out("knows").is(P.gt(0)), out("knows"), out("knows")),
                __.choose(out("knows").is(P.gt(0)), out("knows"), out("created")),
                __.choose(out("knows").is(P.gt(0)), out("knows"))
        );
    }
@author Daniel Kuppitz (http://gremlin.guru)
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/process/traversal/step/branch/ChooseStepTest.java