@Override
        public Traversal<Vertex, Map<String, Long>> get_g_V_outXcreatedX_unionXasXprojectX_inXcreatedX_hasXname_markoX_selectXprojectX__asXprojectX_inXcreatedX_inXknowsX_hasXname_markoX_selectXprojectXX_groupCount_byXnameX() {
            return (Traversal) g.V().out("created")
                    .union(as("project").in("created").has("name", "marko").select("project"),
                            as("project").in("created").in("knows").has("name", "marko").select("project")).groupCount().by("name");
        }
@author Marko A. Rodriguez (http://markorodriguez.com)
@author Stephen Mallette (http://stephen.genoprime.com)
@author Daniel Kuppitz (http://gremlin.guru)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/SelectTest.java