| Name | Type | Description | Notes |
|---|---|---|---|
| Id | long | Order Book ID. Increases by 1 on every order book change. Set `with_id=true` to include this field in response | [optional] |
| Current | double | Response data generation timestamp | [optional] |
| Update | double | Order book changed timestamp | [optional] |
| Asks | List<FuturesOrderBookItem> | Asks order depth | |
| Bids | List<FuturesOrderBookItem> | Bids order depth |