Possible plannable network values.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/enums/reach_plan_network.proto)

| Enums ||
|---|---|
| ## `GOOGLE_VIDEO_PARTNERS` | Google Video Partners (GVP) network. |
| ## `UNKNOWN` | Used as a return value only. Represents value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |
| ## `YOUTUBE` | YouTube network. |
| ## `YOUTUBE_AND_GOOGLE_VIDEO_PARTNERS` | A combination of the YouTube network and the Google Video Partners network. |