@class NSString; @interface IMAssistantMessageSetAttributeHandler : IMAssistantMessageHandler <INSetMessageAttributeIntentHandling> @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)handleSetMessageAttribute:(id)a0 completion:(id /* block */)a1; @end