insert(_:beforeItem:)
Inserts the provided section snapshot immediately before the item with the specified identifier in the section snapshot.
Declaration
func insert(_ snapshot: NSDiffableDataSourceSectionSnapshotReference, beforeItem item: Any)Inserts the provided section snapshot immediately before the item with the specified identifier in the section snapshot.
func insert(_ snapshot: NSDiffableDataSourceSectionSnapshotReference, beforeItem item: Any)