@protocol DADataclassLockWatcher; @interface DAWaiterWrapper : NSObject @property (retain, nonatomic) id<DADataclassLockWatcher> waiter; @property (copy, nonatomic) id /* block */ completionHandler; @property (nonatomic) long long dataclasses; @property (readonly, nonatomic) int waiterNum; - (id)init; - (id)description; - (void).cxx_destruct; @end