code: public function getBackends($version)
      {
          $url = $this->_getApiServiceUri(). 'version/'. $version. '/backend';
          $result = $this->_fetch($url, \Zend_Http_Client::GET);
  
          return $result;
      }
docs: List all backends for a particular service and version.
  
  @param $version
  @return bool|mixed
  @throws LocalizedException