@Override
        public Traversal<Vertex, Vertex> get_g_V_filterXfalseX() {
            return g.V().filter(v -> false);
        }
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