@Test
    @Ignore
    public void testPlay8() throws Exception {
        Graph graph = TinkerFactory.createModern();
        GraphTraversalSource g = graph.traversal();
        System.out.println(g.withSack(1).inject(1).repeat(sack((BiFunction)sum).by(constant(1))).times(10).emit().math("sin _").by(sack()).toList());
    }
@author Stephen Mallette (http://stephen.genoprime.com)
tinkergraph-gremlin/src/test/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerGraphPlayTest.java