/**
  *
  * @return IShopServerWSService
  */
 private function getSoapClient()
 {
     if (!class_exists('nusoap_base', false)) {
         class_exists('nusoap_base');
     }
     //TODO init proxy settings
     $options = array();
     $options['location'] = $this->getEndpointUrl('request');
     $options['trace'] = 1;
     $instance = new IShopServerWSService($this->path . '/vendors/qiwi/' . 'IShopServerWS.wsdl', $options);
     $instance->setDebugLevel(0);
     if ($this->debug) {
         $instance->setDebugLevel(9);
     }
     $instance->soap_defencoding = 'UTF-8';
     return $instance;
 }