| Name | Type | Description | Notes |
|---|---|---|---|
| Id | int64 | Order Book ID. Increases by 1 on every order book change. Set `with_id=true` to include this field in response | [optional] |
| Current | float64 | Response data generation timestamp | [optional] |
| Update | float64 | Order book changed timestamp | [optional] |
| Asks | []FuturesOrderBookItem | Asks order depth | |
| Bids | []FuturesOrderBookItem | Bids order depth |