@class NSArray, NSString, NSDictionary; @interface AMSEngagementMessageEvent : NSObject <AMSEngagementEvent> @property (copy, nonatomic) NSArray *placementInfo; @property (copy, nonatomic) NSString *serviceType; @property (retain) NSDictionary *data; @property (readonly) NSDictionary *engagementData; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; @end