@interface NewsSubscription.FlexiblePaywallCollectionViewDelegate : NSObject <UICollectionViewDelegate> {
    void /* unknown type, empty encoding */ viewportMonitor;
}

- (id)init;
- (void)collectionView:(id)a0 didEndDisplayingSupplementaryView:(id)a1 forElementOfKind:(id)a2 atIndexPath:(id)a3;
- (void)collectionView:(id)a0 willDisplaySupplementaryView:(id)a1 forElementKind:(id)a2 atIndexPath:(id)a3;
- (void)collectionView:(id)a0 willDisplayCell:(id)a1 forItemAtIndexPath:(id)a2;
- (void)collectionView:(id)a0 didEndDisplayingCell:(id)a1 forItemAtIndexPath:(id)a2;
- (void).cxx_destruct;

@end