@class NSCalendar, NSDictionary, NSURL, NSISO8601DateFormatter, NSObject, NSMutableDictionary; @protocol OS_dispatch_queue, OS_dispatch_source; @interface SBHeartbeatMetricPersistence : NSObject { NSObject<OS_dispatch_queue> *_queue; NSCalendar *_queue_calendar; NSISO8601DateFormatter *_queue_dateFormatter; NSMutableDictionary *_queue_metricsByDatestamp; NSObject<OS_dispatch_source> *_queue_persistenceTimer; } @property (class, readonly, copy, nonatomic) NSURL *defaultPersistenceURL; @property (readonly, copy, nonatomic) NSURL *persistenceURL; @property (readonly, nonatomic) double persistenceDelay; @property (readonly, nonatomic) double persistenceLeeway; @property (readonly, copy, nonatomic) NSDictionary *metricsByDatestamp; - (id)init; - (BOOL)_queue_writeToPersistenceURL; - (void)migrateDataFromDefaultsIfNeeded:(id)a0; - (id)initWithPersistenceURL:(id)a0 persistenceDelay:(double)a1 persistenceLeeway:(double)a2; - (void)trackInteractionWithFeatureNamed:(id)a0; - (void)trackInteractionWithFeatureNamed:(id)a0 duration:(double)a1; - (void).cxx_destruct; - (void)_queue_scheduleWriteIfNeeded; - (void)_queue_initializeIfNeeded; @end