The generic item: one node of a tree, with the traits it carries. A back-end item which is never rendered is a CoreItem; use hasTrait to find out what else it has.
The parent item: an empty object for the root, null for an item which is not attached.
The generic item: one node of a tree, with the traits it carries. A back-end item which is never rendered is a CoreItem; use hasTrait to find out what else it has.