@interface EmojiPoster.EmojiSpiralLayout : UICollectionViewLayout { void /* unknown type, empty encoding */ radius; void /* unknown type, empty encoding */ startingAngle; } @property (nonatomic, readonly) struct CGSize { double x0; double x1; } collectionViewContentSize; - (BOOL)shouldInvalidateLayoutForBoundsChange:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0; - (void)prepareLayout; - (id)layoutAttributesForElementsInRect:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0; - (id)init; - (id)layoutAttributesForItemAtIndexPath:(id)a0; - (id)initWithCoder:(id)a0; @end