private DistributionGenerator.Builder makeGenerator(final Graph g) {
            return DistributionGenerator.build(g)
                    .label("knows")
                    .outDistribution(outDistribution)
                    .inDistribution(inDistribution)
                    .expectedNumEdges(numberOfVertices * 10);
        }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/algorithm/generator/DistributionGeneratorTest.java