build_tree_maps
build_tree_maps(idx)Extract tree structure, children_map, and leaf_batches from a LazyIndex.
Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| idx | An open LazyIndex instance. | required |
Returns
| Name | Type | Description |
|---|---|---|
| (tree, children_map, leaf_batches) where: | ||
| - tree: list of node dicts from idx.get_tree_structure() | ||
| - children_map: {parent_node_id: [child_node_id, …]} | ||
| - leaf_batches: {node_id: np.ndarray of item indices} |