@class NSString; @interface VSGenericBlockHolder : NSObject <VSGenericUpdate> { id /* block */ _block; } @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)initWithBlock:(id /* block */)a0; - (void).cxx_destruct; - (void)invokeUpdateWithObject:(id)a0; @end