# Hierarchy
## Properties
**base_level_id** | Option<**i64**> | The ID of the base level. This property is deprecated, see [Change notice: Removing hierarchy level IDs from next-gen APIs](https://developer.atlassian.com/cloud/jira/platform/change-notice-removing-hierarchy-level-ids-from-next-gen-apis/). | [optional]
**levels** | Option<[**Vec<crate::models::SimplifiedHierarchyLevel>**](SimplifiedHierarchyLevel.md)> | Details about the hierarchy level. | [optional][readonly]
[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)