private void test10() { Stream <int> numbers = Stream <int> .fromIterable(new List <int> { 0, 1, 2, 2, 3, 4, 5, 5 }); var transformer = StreamTransformer <int, string> .fromHandlers(handleData : (val, sink) => { sink.add("My number is " + val); }); numbers.transform(transformer).listen(val => { Debug.Log("val = " + val); }); }