@class NSString, SBSystemAction, NSHashTable; @interface SBSystemActionAbstractDataSource : NSObject { NSHashTable *_observers; } @property (retain, nonatomic) SBSystemAction *selectedSystemAction; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)init; - (void)removeObserver:(id)a0; - (void).cxx_destruct; - (void)addObserver:(id)a0; - (id)executorForSystemAction:(id)a0; - (void)updateSelectedAction; @end