getLogout example

if (!($token = $tokenStorage->getToken()) || !$token->getUser()) {
            throw new LogicException('Unable to logout as there is no logged-in user.');
        }

        $request = $this->container->get('request_stack')->getMainRequest();

        if (!$firewallConfig = $this->container->get('security.firewall.map')->getFirewallConfig($request)) {
            throw new LogicException('Unable to logout as the request is not behind a firewall.');
        }

        if ($validateCsrfToken) {
            if (!$this->container->has('security.csrf.token_manager') || !$logoutConfig = $firewallConfig->getLogout()) {
                throw new LogicException(sprintf('Unable to logout with CSRF token validation. Either make sure that CSRF protection is enabled and "logout" is configured on the "%s" firewall, or bypass CSRF token validation explicitly by passing false to the $validateCsrfToken argument of this method.', $firewallConfig->getName()));
            }
            $csrfToken = ParameterBagUtils::getRequestParameterValue($request, $logoutConfig['csrf_parameter']);
            if (!\is_string($csrfToken) || !$this->container->get('security.csrf.token_manager')->isTokenValid(new CsrfToken($logoutConfig['csrf_token_id'], $csrfToken))) {
                throw new LogoutException('Invalid CSRF token.');
            }
        }

        $logoutEvent = new LogoutEvent($request, $token);
        $this->container->get('security.firewall.event_dispatcher_locator')->get($firewallConfig->getName())->dispatch($logoutEvent);