@class CADisplayLink, NSArray, NSMutableDictionary, NSMutableIndexSet, NSIndexSet, NSString, IMScheduledUpdater; @interface CKTranscriptCompositionalLayout : UICollectionViewCompositionalLayout <CKTranscriptLayoutCompatibility> { BOOL _isResting; BOOL _isDisplayDrivenLayoutInvalidation; BOOL _easingUp; double _previousFrameTimestamp; double _currentFrameTimestamp; double _requestedFrameRate; CADisplayLink *_displayLink; struct CGSize { double width; double height; } _contentSize; struct CGRect { struct CGPoint { double x; double y; } origin; struct CGSize { double width; double height; } size; } _visibleBounds; } @property (copy, nonatomic) NSArray *layoutAttributes; @property (copy, nonatomic) NSArray *associatedLayoutAttributes; @property (copy, nonatomic) NSArray *decorationLayoutAttributes; @property (copy, nonatomic) NSArray *oldAssociatedLayoutAttributes; @property (retain, nonatomic) NSMutableIndexSet *insertedAssociatedLayoutAttributes; @property (nonatomic) BOOL hasLoadMore; @property (retain, nonatomic) NSMutableDictionary *initialParentLayoutAttributes; @property (retain, nonatomic) NSMutableDictionary *finalParentVerticalOffsets; @property (nonatomic) BOOL sizeCategoryIsAccessibilitySizeCategory; @property (retain, nonatomic) IMScheduledUpdater *dynamicsUpdater; @property (nonatomic) struct _UIUpdateSequenceItemInternal { } *dynamicsUpdateSequenceItem; @property (nonatomic) double anchorYPosition; @property (nonatomic) struct CGPoint { double x; double y; } targetContentOffset; @property (nonatomic, getter=isHoldingBoundsInvalidation) BOOL holdingBoundsInvalidation; @property (nonatomic, getter=isUsingInitialLayoutAttributesForRotation) BOOL useInitialLayoutAttributesForRotation; @property (nonatomic, getter=isUsingOverlayLayout) BOOL useOverlayLayout; @property (nonatomic, getter=isInlineAnimatingOut) BOOL inlineAnimatingOut; @property (nonatomic) unsigned char chatStyle; @property (readonly, nonatomic) BOOL isResting; @property (nonatomic) struct CGSize { double width; double height; } sizeForRotation; @property (retain, nonatomic) NSIndexSet *indicesOfChatItemsToBeRemovedWithoutFading; @property (retain, nonatomic) NSIndexSet *indicesOfChatItemsToBeInsertedWithoutFading; @property (retain, nonatomic) NSIndexSet *indicesOfReplyChatItemsToBeInserted; @property (nonatomic) BOOL disableDynamicsWhileScrolling; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; + (Class)layoutAttributesClass; + (double)bottomTranscriptSpaceWithLastChatItem:(id)a0; + (long long)translateLayoutIndexToEffectIndex:(long long)a0; - (struct CGSize { double x0; double x1; })collectionViewContentSize; - (id)initWithSectionProvider:(id /* block */)a0; - (BOOL)shouldInvalidateLayoutForBoundsChange:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0; - (void)prepareLayout; - (void)reloadLayout; - (id)layoutAttributesForElementsInRect:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0; - (id)finalLayoutAttributesForDisappearingItemAtIndexPath:(id)a0; - (double)bezierPointForPercentage:(double)a0 anchor1:(double)a1 anchor2:(double)a2 control1:(double)a3 control2:(double)a4; - (id)layoutAttributesForItemAtIndexPath:(id)a0; - (id)layoutAttributesForDecorationViewOfKind:(id)a0 atIndexPath:(id)a1; - (void)dealloc; - (BOOL)_dynamicsAreEnabled; - (void)_resetHorizontalBalloonOffsetsForLayoutAttributes:(id)a0 includeAssociatedAttributes:(BOOL)a1; - (void)reloadData; - (BOOL)needsAdditionalBracketPaddingForChatItem:(id)a0 prevChatItem:(id)a1; - (void)_configureThreadGroupsForAttributes:(id)a0 outMaxYAnchorAttribute:(id *)a1 forVisibleBounds:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a2; - (void)beginHoldingDynamicsUpdatesForKey:(id)a0; - (void)invalidateDisplayLink; - (void)_configureDisplayLink; - (void)_configureUpdateSequenceItem; - (BOOL)previousReplyCount:(unsigned long long)a0 isOccludedForAssociatedFrame:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a1 outMaxY:(double *)a2; - (BOOL)nextMessageIsReplyForIndex:(unsigned long long)a0; - (id)initialLayoutAttributesForAppearingItemAtIndexPath:(id)a0; - (BOOL)nextItemIsOriginatorWithRepliesForIndex:(unsigned long long)a0; - (void)_applyCurrentFrameOffsetsForLayoutAttributesIfNeeded:(id)a0; - (void)_applyTargetFrameOffsetsForLayoutAttributesIfNeeded:(id)a0; - (void)_kickDynamicsIfNeeded; - (void)endHoldingDynamicsUpdatesForKey:(id)a0; - (void)_updateCurrentBalloonOffsetForLayoutAttributes:(id)a0; - (long long)effectIndexForDecorationViewAtIndex:(long long)a0; - (void).cxx_destruct; - (void)updateContentSize; - (void)updateAttributesForAnchorYChangeWithAttributes:(id)a0; - (void)prepareLayoutForRotisserieScrolling; - (void)removeUpdateSequenceItem; - (double)handleInvalidCaseForChatItem:(id)a0 withPrevChatItem:(id)a1; - (void)_applyAttributeUpdatesWithTargetMap:(id)a0 layoutAttributes:(id)a1 updateBlock:(id /* block */)a2; - (void)_applyHorizontalOffsetFromMapping:(id)a0 toLayoutAttributes:(id)a1; - (void)setVerticalOffset:(double)a0 forParentOfAssociatedItemDeletedAtIndex:(unsigned long long)a1; - (void)reduceMotionSettingChanged:(id)a0; - (void)setNeedsDynamicsUpdate; - (void)_dealloc; - (void)_updateAttributeZIndex:(id)a0 forEffect:(id)a1; - (struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })_convertScreenFrameToLocalFrame:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0; - (void)_updateAssociatedAttributeFramesForPrimaryAttribute:(id)a0; - (struct UIEdgeInsets { double x0; double x1; double x2; double x3; })_visibleRectInsectsForMaxYAnchorLayoutAttribute:(id)a0 forVisibleBounds:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a1; - (void)updateAssociatedLayoutAttributesIfNecessary; - (void)clearParentInitialIndexesAndFinalOffsets; - (void)sizeCategoryDidChange:(id)a0; - (void)displayLinkFired:(id)a0; - (void)applyDynamicScrollResistanceToItemsForScrollDeltaY:(double)a0; - (void)updateAttributesForTargetContentOffsetChangeWithAttributes:(id)a0; - (void)setInitialIndex:(unsigned long long)a0 forParentOfAssociatedItemInsertedAtIndex:(unsigned long long)a1; @end