@class NSArray, NSMutableArray; @interface _SBFForkJoinObservable : SBFObservable { NSArray *_observables; NSMutableArray *_results; unsigned long long _uncompletedObservableCount; } - (id)subscribe:(id)a0; - (void).cxx_destruct; - (void)_observableFinishedForObserver:(id)a0; - (void)_setResult:(id)a0 atIndex:(unsigned long long)a1; - (id)initWithWithObservables:(id)a0; @end