@class NSData; @interface SHMediaLibraryItemMetadata : NSObject @property (readonly, nonatomic) NSData *encodedSystemData; - (void).cxx_destruct; - (id)copyWithZone:(struct _NSZone { } *)a0; - (id)initWithEncodedSystemData:(id)a0; - (BOOL)validEncodedSystemData:(id)a0; @end