@Override
        public Traversal<Vertex, Map<String, Long>> get_g_withSideEffectXa__linkedhashmapX_V_out_groupCountXaX_byXlabelX_out_out_capXaX() {
            return g.withSideEffect("a", new LinkedHashMapSupplier()).V().out().groupCount("a").by(T.label).out().out().cap("a");
        }
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