@Override
        public Traversal<Vertex, Path> get_g_V_asXaX_out_asXbX_out_asXcX_path_fromXbX_toXcX_byXnameX() {
            return g.V().as("a").out().as("b").out().as("c").path().from("b").to("c").by("name");
        }
@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/map/PathTest.java