@Test
    public void shouldSupportGryoV3IoRegistry() throws Exception {
        super.checkGryoV3IoRegistryCompliance((HadoopGraph) graph, SparkGraphComputer.class);
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
spark-gremlin/src/test/java/org/apache/tinkerpop/gremlin/spark/structure/io/SparkIoRegistryCheck.java