| Name | Type | Description | Notes |
|---|---|---|---|
| interval | String | Defines the amount of time the voucher will be active in ISO 8601 format. For example, a voucher with a duration of PT1H will be valid for a duration of one hour. | [optional] |
| duration | String | Defines the intervening time between two time points in ISO 8601 format, expressed as a duration. For example, a voucher with an interval of P2D will be active every other day. | [optional] |