docs: private static String getPluralOpenString(String varName, int offset) {
      StringBuilder openingPartSb = new StringBuilder();
      openingPartSb.append('{').append(varName).append(",plural,");
      if (offset != 0) {
        openingPartSb.append("offset:").append(offset).append(' ');
      }
      return openingPartSb.toString();
    }