@class NSString; @interface MUImpressionsLogger : NSObject <MUImpressionsLogging> @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)logImpressionElementDidEnter:(id)a0 onDate:(id)a1; - (void)logImpressionElementDidExit:(id)a0 usingEnterDate:(id)a1 exitDate:(id)a2; @end