@class NSString, NSDictionary; @interface PGAbstractMetricEvent : NSObject <PLMetricEvent> @property (readonly, nonatomic) NSString *identifier; @property (readonly, nonatomic) NSDictionary *payload; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)gatherMetricsWithProgressBlock:(id /* block */)a0; @end