@interface PromotedContentUI.CarouselBackgroundCollectionController : NSObject <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout> {
void /* unknown type, empty encoding */ elements;
void /* unknown type, empty encoding */ contentSize;
}
- (struct CGSize { double x0; double x1; })collectionView:(id)a0 layout:(id)a1 sizeForItemAtIndexPath:(id)a2;
- (double)collectionView:(id)a0 layout:(id)a1 minimumLineSpacingForSectionAtIndex:(long long)a2;
- (double)collectionView:(id)a0 layout:(id)a1 minimumInteritemSpacingForSectionAtIndex:(long long)a2;
- (long long)collectionView:(id)a0 numberOfItemsInSection:(long long)a1;
- (id)collectionView:(id)a0 cellForItemAtIndexPath:(id)a1;
- (id)init;
- (void).cxx_destruct;
@end