code: public function reboot($domain)
      {
          $domain = (string)$domain;
          if (!$domain)
              throw new BadMethodCallException('Parameter $domain is missing.');
          try {
              $this->post('dedicated/server/'.$domain.'/reboot', array('Content-Type' => 'application/json;charset=UTF-8'))->send();
          } catch (\Exception $e) {
              throw new ServerException($e->getMessage(), $e->getCode(), $e);
          }
      }
docs: Reboot
  
  @param string $domain
  @throws Exception\ServerException
  @throws \Ovh\Common\Exception\BadMethodCallException