# `RankEvalDocumentRating` [interface-RankEvalDocumentRating]

| Name | Type | Description |
| - | - | - |
| `_id` | [Id](./Id.md) | The document ID. |
| `_index` | [IndexName](./IndexName.md) | The document’s index. For data streams, this should be the document’s backing index. |
| `rating` | [integer](./integer.md) | The document’s relevance with regard to this search request. |