code: public static MultiLanguageText.Builder addMultiLanguageText(final MultiLanguageText.Builder multiLanguageTextBuilder, final Locale locale, final String multiLanguageText) {
          return addMultiLanguageText(multiLanguageTextBuilder, locale.getLanguage(), multiLanguageText);
      }
docs: Add a multiLanguageText to a multiLanguageTextBuilder by locale. This is equivalent to calling
  {@link #addMultiLanguageText(Builder, String, String)} but the language code is extracted from the locale
  by calling {@link Locale#getLanguage()}.
  
  @param multiLanguageTextBuilder the multiLanguageText builder to be updated
  @param locale             the locale from which the language code is extracted for which the multiLanguageText is added
  @param multiLanguageText        the multiLanguageText to be added
  
  @return the updated multiLanguageText builder