| Name | Type | Description | Notes |
|---|---|---|---|
| from | Integer | The version number of the service to which changes in the generated VCL are being compared. | [optional] |
| to | Integer | The version number of the service from which changes in the generated VCL are being compared. | [optional] |
| format | String | The format in which compared VCL changes are being returned in. | [optional] |
| diff | String | The differences between two specified versions. | [optional] |