code: public String getDelimiter(int type) {
          ICUResourceBundle delimitersBundle = (ICUResourceBundle) bundle.get("delimiters");
          // Only some of the quotation marks may be here. So we make sure that we do a multilevel fallback.
          ICUResourceBundle stringBundle = delimitersBundle.getWithFallback(DELIMITER_TYPES[type]);
  
          if (noSubstitute && !bundle.isRoot() && stringBundle.isRoot()) {
              return null;
          }
          return stringBundle.getString();
      }
docs: Retrieves a delimiter string from the locale data.
  
  @param type      The type of delimiter string desired.  Currently,
  the valid choices are QUOTATION_START, QUOTATION_END,
  ALT_QUOTATION_START, or ALT_QUOTATION_END.
  @return          The desired delimiter string.