https://tinkerpop.apache.org/javadocs/3.7.6-SNAPSHOT/full/org/apache/tinkerpop/gremlin/tinkergraph/structure/AbstractTinkerGraph.TinkerGraphVertexPropertyFeatures.html
AbstractTinkerGraph.TinkerGraphVertexPropertyFeatures (Apache TinkerPop 3.7.6-SNAPSHOT API)
apache tinkerpopsnapshotapi