code: protected function loadSessionHandlerParams($params)
      {
          if (isset($params['sessionHandlerParams'])) {
              if ($params['sessionHandlerParams'] instanceof SessionHandlerParams) {
                  $this->sessionHandlerParams = $params['sessionHandlerParams'];
              } elseif (is_array($params['sessionHandlerParams'])) {
                  $this->sessionHandlerParams = new SessionHandlerParams($params['sessionHandlerParams']);
              }
          }
      }
docs: Load Session Handler Parameters
  
  @param array $params
  @return void