- T value
Creates an Observable with each data event of this stream asynchronously mapped to a new event.
This acts like map, except that convert may return a Future, and in that case, the stream waits for that future to complete before continuing with its result.
The returned stream is a broadcast stream if this stream is.
@override Observable<S> asyncMap<S>(FutureOr<S> convert(T value)) => Observable<S>(_stream.asyncMap(convert));