# `TransformLatest` [interface-TransformLatest]

| Name | Type | Description |
| - | - | - |
| `sort` | [Field](./Field.md) | Specifies the date field that is used to identify the latest documents. |
| `unique_key` | [Field](./Field.md)[] | Specifies an array of one or more fields that are used to group the data. |