docs: public static boolean getBooleanValue(CmsObject cms, I_CmsWidgetParameter value) {
  
          boolean result;
          if (value instanceof CmsXmlBooleanValue) {
              // this is a "native" boolean type
              result = ((CmsXmlBooleanValue)value).getBooleanValue();
          } else {
              // get the boolean value from the String value
              result = getBooleanValue(value.getStringValue(cms));
          }
          return result;
      }