how to use

[meetiosdev]

some one please how to use
extension BasicExampleViewController: GalleryItemsDataSource {
func itemCount() -> Int {
return items.count
}

func provideGalleryItem(_ index: Int) -> GalleryItem {
    return items[index].galleryItem
}

}

Use of unresolved identifier 'items'

[alimirshad]

Create your items that is of type GalleryItem