countryCode property
Common Locale Data Repository (CLDR) territory code of the country associated with the feed where your items are uploaded.
See https://developers.google.com/google-ads/api/reference/data/codes-formats#country-codes for more information. This information is useful to differentiate product information in cases where a product (identified by item_id) is associated with multiple countries.
Implementation
core.String? countryCode;