Phone number and country code in smart campaign settings.

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

| Fields ||
|---|---|
| ## `country_code` | `string` Upper-case, two-letter country code as defined by ISO-3166. |
| ## `phone_number` | `string` Phone number of the smart campaign. |