@class NSString; @interface IMAssistantUnsendMessagesHandler : IMAssistantMessageQueryHandler <INUnsendMessagesIntentHandling> @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; + (id)makeRetractedMessageItem:(id)a0; - (void)handleUnsendMessages:(id)a0 completion:(id /* block */)a1; - (void)chatsForMessageIdentifiers:(id)a0 completion:(id /* block */)a1; - (void)retractPartIndex:(long long)a0 fromMessageItem:(id)a1 chat:(id)a2 backwardCompatabilityText:(id)a3; @end