System/Library/PrivateFrameworks/Silex.framework

SXMediaViewEvent.h

NSObject
>
SXAnalyticsEvent
>
SXMediaEvent

@class NSArray;

@interface SXMediaViewEvent : SXMediaEvent

@property (nonatomic) unsigned long long galleryImageCount;
@property (retain, nonatomic) NSArray *galleryImageIds;

- (void).cxx_destruct;

@end