Whatsapp information to use for messaging.

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

| Fields ||
|---|---|
| ## `country_code` | `string` Required. Two-letter country code of the phone number. Examples: 'US', 'us'. |
| ## `phone_number` | `string` Required. Whatsapp phone number of the business. Examples: '1234567890', '(123)456-7890'. |