public static TinkerGraph createClassic() {
        final TinkerGraph g = getTinkerGraphWithClassicNumberManager();
        generateClassic(g);
        return g;
    }
Create the "classic" graph which was the original toy graph from TinkerPop 2.x.
tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerFactory.java