@interface PhysicalInterfaceSample : 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 rxThroughput; @property (readonly, nonatomic) double txThroughput; @property (readonly, nonatomic) unsigned long long rxThroughputBps; @property (readonly, nonatomic) unsigned long long txThroughputBps; - (id)description; @end