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# Flow layout supplementary views

Constants that specify the types of supplementary views that can be presented using a flow layout.

## Topics

### Constants

[`elementKindSectionHeader`](/documentation/UIKit/UICollectionView/elementKindSectionHeader)

A supplementary view that identifies the header for a given section.

[`elementKindSectionFooter`](/documentation/UIKit/UICollectionView/elementKindSectionFooter)

A supplementary view that identifies the footer for a given section.


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