Flattens out an Rx[Future[T]] into a Rx[T].
Flattens out an Rx[Future[T]] into a Rx[T]. If the first Future has not yet arrived, the Async contains its default value. Afterwards, it updates itself when and with whatever the Futures complete with.
The initial value of this Rx before any Future has completed.
Whether or not to discard the result of Futures which complete "late":
meaning it was created earlier but completed later than some other Future.
Provides extension methods on Rx[Future]s.