private GraphWriter getWriter(Mapper paramMapper) {
        return GraphSONWriter.build().mapper(paramMapper).create();
    }
Those kinds of types are declared differently in the GraphSON type deserializer, check that all are handled
properly.
tinkergraph-gremlin/src/test/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerGraphGraphSONSerializerV2Test.java