- deferauto  defer() 
- Create observable by function that template parameter. 
- deferauto  defer(TSubscribe subscribeImpl) 
- Undocumented in source. Be warned that the author may not have intended to support it. 
- doSubscribeauto  doSubscribe(TObservable observable, void delegate(E) doPut, void delegate() doCompleted, void delegate(Exception) doFailure) 
- auto  doSubscribe(TObservable observable, void delegate(E) doPut, void delegate() doCompleted) 
- auto  doSubscribe(TObservable observable, void delegate(E) doPut, void delegate(Exception) doFailure) 
- auto  doSubscribe(TObservable observable) 
- auto  doSubscribe(TObservable observable, TObserver observer) 
- The helper for subscribe easier. 
- emptyauto  empty() 
- errorauto  error(Exception e) 
- fromauto  from(R input) 
- neverauto  never() 
This module defines the concept of Observable.