@Override
        public Traversal<Vertex, Map<Integer, Integer>> get_g_VX1X_hasXlabel_personX_mapXmapXint_ageXX_orderXlocalX_byXvalues_descX_byXkeys_ascX(final Object v1Id) {
            return g.V(v1Id).hasLabel("person").map(v -> {
                final Map<Integer, Integer> map = new HashMap<>();
                map.put(1, (int) v.get().value("age"));
                map.put(2, (int) v.get().value("age") * 2);
                map.put(3, (int) v.get().value("age") * 3);
                map.put(4, (int) v.get().value("age"));
                return map;
            }).order(Scope.local).by(Column.values, desc).by(keys, Order.asc);
        }
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