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