@Override
    default int getOrder() {
        return Ordered.LOWEST_PRECEDENCE;
    }
Supports boolean.

@param registeredService   the registered service
@param singleLogoutService the single logout service
@param httpRequest         the http request
@return true/false
api/cas-server-core-api-logout/src/main/java/org/apereo/cas/logout/slo/SingleLogoutServiceLogoutUrlBuilder.java