System/Library/PrivateFrameworks/BacklightServicesHost.framework
BLSHWaitOperation.h
@class NSString;
@interface BLSHWaitOperation : NSObject <BLSHPendingOperation>
@property (readonly) long long type;
@property (getter=isStarted) BOOL started;
@property (getter=isCompleted) BOOL completed;
@property (readonly) unsigned long long hash;
@property (readonly) Class superclass;
@property (readonly, copy) NSString *description;
@property (readonly, copy) NSString *debugDescription;
@end