# ProjectIssueTypeHierarchy ## Properties Name | Type | Description | Notes ------------ | ------------- | ------------- | ------------- **project_id** | Option<**i64**> | The ID of the project. | [optional][readonly] **hierarchy** | Option<[**Vec**](ProjectIssueTypesHierarchyLevel.md)> | Details of an issue type 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)