@interface SiriAnalyticsLogicalClockStatistics : NSObject @property (nonatomic) unsigned long long startedOn; @property (nonatomic) unsigned long long endedOn; @property (nonatomic) unsigned long long lastMessageEmittedOn; @property (nonatomic) unsigned long long messagesEmitted; @property (readonly, nonatomic) unsigned long long clockAgeInNanoseconds; @property (readonly, nonatomic) unsigned long long utilizationLifetimeInNanoseconds; @property (nonatomic) BOOL bookkeepingDirtied; - (void)noteMessageEmitted; @end