@class NSArray; @interface CKGroupAcknowledgmentVotingLayout : UICollectionViewLayout @property (copy, nonatomic) NSArray *ballotItems; @property (nonatomic) long long expandedSection; @property (nonatomic) BOOL isAnimatedLayoutChange; @property (retain, nonatomic) NSArray *fromBallotItems; @property (nonatomic) struct CGSize { double width; double height; } fromContentSize; @property (nonatomic) struct CGPoint { double x; double y; } fromContentOffset; @property (nonatomic) unsigned long long layoutMode; @property (nonatomic) struct CGPoint { double x; double y; } previousCollapsedContentOffset; - (struct CGSize { double x0; double x1; })collectionViewContentSize; - (void)prepareLayout; - (id)layoutAttributesForSupplementaryViewOfKind:(id)a0 atIndexPath:(id)a1; - (id)layoutAttributesForElementsInRect:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0; - (id)finalLayoutAttributesForDisappearingItemAtIndexPath:(id)a0; - (id)init; - (id)layoutAttributesForItemAtIndexPath:(id)a0; - (id)initialLayoutAttributesForAppearingItemAtIndexPath:(id)a0; - (void).cxx_destruct; - (id)finalLayoutAttributesForDisappearingSupplementaryElementOfKind:(id)a0 atIndexPath:(id)a1; - (void)finalizeAnimatedBoundsChange; - (id)initialLayoutAttributesForAppearingSupplementaryElementOfKind:(id)a0 atIndexPath:(id)a1; - (struct CGPoint { double x0; double x1; })targetContentOffsetForProposedContentOffset:(struct CGPoint { double x0; double x1; })a0; - (void)_initializeBallotItems; - (long long)_numberOfBallots; - (void)_setupAnimatedCollapsedLayout; - (void)_setupCollapsedLayout; - (void)_setupExpandedLayout; - (BOOL)_shouldFillInFromCenter; - (double)_totalBallotContainersWidth; - (void)cleanupAnimationCache; - (void)preapareForLayoutAnimationAroundSection:(long long)a0; @end