code: public static Language defaultLanguage() {
        return Config.get("hermes.DefaultLanguage").as(Language.class, Language.fromLocale(Locale.getDefault()));
     }
docs: Get the default language. The default language is specified using <code>hermes.DefaultLanguage</code>. If the
  configuration option is not set, it will default to the language matching the system locale.
  
  @return the default language