@class NSString; @interface SSMetricsPurchaseEvent : SSMetricsBaseEvent @property (nonatomic) double requestStartTime; @property (nonatomic) double responseEndTime; @property (nonatomic) double responseStartTime; @property (retain, nonatomic) NSString *transactionIdentifier; - (id)init; - (void)addFieldsFromPurchaseResponse:(id)a0; @end