@class NSMutableDictionary, NSMutableIndexSet;
@protocol _UICollectionLayoutAuxillaryOffsets;
@interface _UICollectionPreferredSizes : NSObject <NSCopying> {
NSMutableDictionary *_sizes;
NSMutableIndexSet *_indexes;
NSMutableDictionary *_supplementarySizesDict;
long long _frameOffset;
id<_UICollectionLayoutAuxillaryOffsets> _supplementaryBaseOffsets;
struct CGSize { double width; double height; } _largestItemSize;
}
- (id)init;
- (id)description;
- (void).cxx_destruct;
- (id)copyWithZone:(struct _NSZone { } *)a0;
@end