/**
     * Gets the appropriate response for the specified SSO response type.
     *
     * @param responseType The type of SSO response required (e.g., METADATA, LOGOUT)
     * @return The action response from the SSO authenticator, or null if SSO is not available
     */
    public ActionResponse getResponse(final SsoResponseType responseType) {
        if (available()) {
            final SsoAuthenticator authenticator = getAuthenticator();

    /**
     * Gets the action response for the specified SSO response type.
     * @param responseType The type of SSO response required.
     * @return The action response.
     */
    ActionResponse getResponse(SsoResponseType responseType);

    /**
     * Performs logout for the specified user.
     * @param user The user to logout.