Enum describing format restrictions for responsive ads in video campaigns.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/enums/video_ad_format_restriction.proto)

| Enums ||
|---|---|
| ## `NON_SKIPPABLE_IN_STREAM` | Non-skippable in-stream video responsive ad. |
| ## `UNKNOWN` | Used for return value only. Represents value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |