| Name | Type | Description | Notes |
|---|---|---|---|
| t | double | Unix timestamp in seconds | [optional] |
| v | int | size volume (contract size). Only returned if `contract` is not prefixed | [optional] |
| c | string | Close price (quote currency, unit: underlying corresponding option price) | [optional] |
| h | string | Highest price (quote currency, unit: underlying corresponding option price) | [optional] |
| l | string | Lowest price (quote currency, unit: underlying corresponding option price) | [optional] |
| o | string | Open price (quote currency, unit: underlying corresponding option price) | [optional] |