code: public function hasSnippet($version, $name)
      {
          $url = $this->_getApiServiceUri() . 'version/' . $version . '/snippet/' . $name;
          $result = $this->_fetch($url, \Zend_Http_Client::GET, '', false, null, false);
  
          if ($result == false) {
              return false;
          }
  
          return true;
      }
docs: Performs a lookup to determine if VCL snippet exists
  
  @param string    $version    Fastly version
  @param string    $name   VCL snippet name
  
  @return bool
  @throws LocalizedException