docs: protected String getValuesString() {
          final StringBuilder builder = new StringBuilder();
  
          for(final String value : values) {
              builder.append(AciURLCodec.getInstance().encode(value)).append(',');
          }
  
          if(builder.length() > 0) {
              builder.deleteCharAt(builder.length() - 1);
          }
  
          return builder.toString();
      }