code: public function getLoad($paramsList = ['waiting', 'load', 'minbid', 'averageRecognitionTime'])
      {
          $parser = $this->getLoadXml();
  
          if (is_string($paramsList)) {
              return $parser->$paramsList->__toString();
          }
  
          $statusData = [];
  
          foreach ($paramsList as $item) {
              $statusData[$item] = $parser->$item->__toString();
          }
  
          return $statusData;
      }
docs: Returns server health data.
  
  @param string|string[] $paramsList   # List of metrics to be returned
  @return string[]|string              # Array of load metrics $metric => $value formatted
  @throws \GuzzleHttp\Exception\GuzzleException