code: protected function initSoapClient($wsdlId)
      {
          $wsdlPath = WsdlAnalyser::$wsdlIds[$wsdlId];
  
          $client = new Client\SoapClient(
              $wsdlPath,
              $this->makeSoapClientOptions(),
              $this->params->logger
          );
  
          return $client;
      }
docs: Initialize SoapClient for a given WSDL ID
  
  @param string $wsdlId
  @return \SoapClient