eZ\Publish\Core\MVC\Symfony\Security\Authentication\AuthenticatorInterface::logout PHP Method

    public function logout(Request $request);

 /**
  * Deletes given session.
  *
  * @param string $sessionId
  *
  * @return Values\DeletedUserSession
  *
  * @throws NotFoundException
  */
 public function deleteSessionAction($sessionId, Request $request)
 {
     /** @var $session \Symfony\Component\HttpFoundation\Session\Session */
     $session = $request->getSession();
     if (!$session->isStarted() || $session->getId() != $sessionId || !$this->hasStoredCsrfToken()) {
         $response = $this->authenticator->logout($request);
         $response->setStatusCode(404);
         return $response;
     }
     $this->checkCsrfToken($request);
     return new Values\DeletedUserSession($this->authenticator->logout($request));
 }