Creates a request for modifying the specified asset collection.
- iOS 8.0+
- tvOS 10.0+
The asset collection to be modified.
An asset collection change request.
After you create a change request within a photo library change block, propose changes to the collection’s title or list of member assets with the properties and instance methods of the change request. After Photos runs your change block, the asset collection reflects your changes. For details on change blocks, see
Use this method when modifying an asset collection’s metadata or when adding or removing assets without regard to their arrangement. To work with indexes in the list of member assets, use the
init(for: method instead.