/**
  * Refresh a path or URL
  *
  * @param string $path    Path or URL
  * @param array  $headers HTTP headers (optional)
  *
  * @see RefreshInterface::refresh()
  *
  * @throws UnsupportedProxyOperationException
  *
  * @return $this
  */
 public function refreshPath($path, array $headers = [])
 {
     if (!$this->cache instanceof RefreshInterface) {
         throw UnsupportedProxyOperationException::cacheDoesNotImplement('REFRESH');
     }
     $this->cache->refresh($path, $headers);
     return $this;
 }