In Scala, this package only contains rx.lang.scala.observables.BlockingObservable.
In the corresponding Java package rx.observables, there is also a
GroupedObservable and a ConnectableObservable, but these are not needed
in Scala, because we use a pair (key, observable) instead of GroupedObservable
and a pair (startFunction, observable) instead of ConnectableObservable.
Contains special Observables.
In Scala, this package only contains rx.lang.scala.observables.BlockingObservable. In the corresponding Java package
rx.observables, there is also aGroupedObservableand aConnectableObservable, but these are not needed in Scala, because we use a pair(key, observable)instead ofGroupedObservableand a pair(startFunction, observable)instead ofConnectableObservable.