@class NSString, SGSqlEntityStore; @interface SGHistoryObserver : NSObject <SGSuggestHistoryObserver> { SGSqlEntityStore *_store; } @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)initWithStore:(id)a0; - (void).cxx_destruct; - (void)hashesDidChange; - (void)processNewConfirmOrRejectEventHashes:(id)a0; - (void)processNewConfirmedOrRejectedReminderHashes:(id)a0; @end