@class NSString; @interface PGFeatureExtractionSourceMessages : NSObject <PGFeatureExtractionSource> @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)extractSharingRecordsFromGraph:(id)a0 photoLibrary:(id)a1 loggingConnection:(id)a2 progressBlock:(id /* block */)a3; @end