@class NSArray, NSString, NSMutableOrderedSet; @interface CNAvatarCacheFingerprintCollector : NSObject <CNChangeHistoryEventVisitor> { NSMutableOrderedSet *_fingerprints; } @property (readonly, copy, nonatomic) NSArray *fingerprintsOfAffectedContacts; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)init; - (void)visitUpdateContactEvent:(id)a0; - (void)visitAddContactEvent:(id)a0; - (void).cxx_destruct; - (void)visitDeleteContactEvent:(id)a0; - (void)visitDropEverythingEvent:(id)a0; @end