Determines the limit of API calls per given unit time.
| Name | Type | Description |
|---|---|---|
| value | Integer | Determines the maximum number of API calls per time set in `"duration"`. |
| duration | String | Determines the amount of time during which the calls up to the number specified in the `value` can be made. The duration is presented in the ISO 8601 format, e.g. `PT1H` means one hour. |