# Hierarchy ## Properties Name | Type | Description | Notes ------------ | ------------- | ------------- | ------------- **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**](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)