@class NSString, NSData; @interface QLExternallyCachedThumbnailData : NSObject <PQLResultSetInitializer> @property (readonly, nonatomic) NSString *itemIdentifier; @property (readonly, nonatomic) NSData *versionIdentifier; @property (readonly, nonatomic) NSString *fileExtension; @property (readonly, nonatomic) unsigned long long size; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; @end