default boolean supports(final HttpServletRequest request, final HttpServletResponse response,
                             final LogoutRequest logoutRequest, final MessageContext messageContext) {
        return true;
    }
Supports this slo request?

@param request        the request
@param response       the response
@param logoutRequest  the logout request
@param messageContext the message context
@return true/false
support/cas-server-support-saml-idp-core/src/main/java/org/apereo/cas/support/saml/idp/slo/SamlIdPProfileSingleLogoutRequestProcessor.java