| Name | Type | Description | Notes |
|---|---|---|---|
| role | String | The ole that applies to this item. Only available if the collection supportsRoles per its capabilities. A Controlled Vocabulary should be used. | [optional] |
| index | Integer | position of the item in the collection. Only available if the Collection isOrdered per its capabilities. | [optional] |
| date_added | DateTime | The date the item was added to the collection. | [optional] |
| date_updated | DateTime | The date the item's metadata were last updated. | [optional] |