@Override
        public Traversal<Vertex, Vertex>  get_g_V_hasIdX1X_hasIdX2X(final Object v1Id, final Object v2Id) {
            return g.V().hasId(v1Id).hasId(v2Id);
        }
@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/filter/HasTest.java