@Override
        public Traversal<Vertex, String> get_g_VX1X_mapXnameX(final Object v1Id) {
            return g.V(v1Id).<String>map(v -> v.get().value("name"));
        }
Tests that cover lambda steps that are used in embedded cases.
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/LambdaStepTest.java