code: function vertexStringify(vertex) {
          var stream = new Tinkerpop.ByteArrayOutputStream();
          var builder = Tinkerpop.GraphSONWriter.build();
          var writer = builder.create();
          writer.writeVertex(stream, vertex);
          return stream.toString(Tinkerpop.UTF8);
      }
docs: #### `vertexStringify(vertex: Java.Vertex)` Converts a Tinkerpop Vertex to a string representation. See also `vertexToJson` below.