The base tree item contract — shared by full tree item contexts and card apis —
covering item data, selection, active state, path, and entity actions. Children,
expansion, and pagination are not included here; they extend this contract in
UmbTreeItemContext.
The base tree item contract — shared by full tree item contexts and card apis — covering item data, selection, active state, path, and entity actions. Children, expansion, and pagination are not included here; they extend this contract in
UmbTreeItemContext.