code: public static <K, OLD, NEW> DataSet<Vertex<K, NEW>> translateVertexValues(DataSet<Vertex<K, OLD>> vertices, TranslateFunction<OLD, NEW> translator) {
  		return translateVertexValues(vertices, translator, PARALLELISM_DEFAULT);
  	}
docs: Translate {@link Vertex} values using the given {@link TranslateFunction}.
  
  @param vertices input vertices
  @param translator implements conversion from {@code OLD} to {@code NEW}
  @param <K> vertex ID type
  @param <OLD> old vertex value type
  @param <NEW> new vertex value type
  @return translated vertices