@interface PXPeopleCollectionViewLayout : UICollectionViewFlowLayout

@property (nonatomic) unsigned long long firstVisibleCellIndex;

- (struct CGPoint { double x0; double x1; })targetContentOffsetForProposedContentOffset:(struct CGPoint { double x0; double x1; })a0;
- (struct CGPoint { double x0; double x1; })targetContentOffsetForProposedContentOffset:(struct CGPoint { double x0; double x1; })a0 withScrollingVelocity:(struct CGPoint { double x0; double x1; })a1;

@end