docs: public static <K, EV> Graph<K, NullValue, EV> fromDataSet(
  			DataSet<Edge<K, EV>> edges, ExecutionEnvironment context) {
  
  		DataSet<Vertex<K, NullValue>> vertices = edges
  			.flatMap(new EmitSrcAndTarget<>())
  				.name("Source and target IDs")
  			.distinct()
  				.name("IDs");
  
  		return new Graph<>(vertices, edges, context);
  	}