message: Make PrivateUser country optional
diff: @@ -24,7 +24,7 @@ pub struct PublicUser {
  #[derive(Clone, Debug, Serialize, Deserialize)]
  pub struct PrivateUser {
  pub birthdate: Option<NaiveDate>,
  - pub country: String,
  + pub country: Option<String>,
  pub display_name: Option<String>,
  pub email: Option<String>,
  pub external_urls: HashMap<String, String>,
  