code: protected function loadRequestCreatorParams($params)
      {
          if (isset($params['requestCreatorParams'])) {
              if ($params['requestCreatorParams'] instanceof RequestCreatorParams) {
                  $this->requestCreatorParams = $params['requestCreatorParams'];
              } elseif (is_array($params['requestCreatorParams'])) {
                  $this->requestCreatorParams = new RequestCreatorParams($params['requestCreatorParams']);
              }
          }
      }
docs: Load Request Creator Parameters
  
  @param array $params
  @return void