@interface AudioVideoSample : NSObject @property (nonatomic) double startTimeIntervalSinceReferenceDate; @property (nonatomic) double elapsedTime; @property (nonatomic) unsigned long long rxBytes; @property (nonatomic) unsigned long long txBytes; @property (readonly, nonatomic) double averageRxThroughput; @property (readonly, nonatomic) double averageTxThroughput; @property (readonly, nonatomic) BOOL isIdle; - (id)description; @end