@class NSDictionary, AMSUIDynamicImpressionMetricsIdentifier; @interface AMSUIDynamicImpressionMetrics : NSObject @property (retain, nonatomic) NSDictionary *custom; @property (retain, nonatomic) NSDictionary *fields; @property (retain, nonatomic) AMSUIDynamicImpressionMetricsIdentifier *identifier; - (void).cxx_destruct; - (id)initWithIdentifier:(id)a0 fields:(id)a1 custom:(id)a2; @end