@class FCReadingHistory, NSString; @interface FCFeedTransformationUnseenOnly : NSObject <FCFeedTransforming> @property (retain, nonatomic) FCReadingHistory *history; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; + (id)transformationWithReadingHistory:(id)a0; - (id)transformFeedItems:(id)a0; - (void).cxx_destruct; @end