code: func (resp *Response) WriteDeflate(w *bufio.Writer) error {
  	return resp.WriteDeflateLevel(w, CompressDefaultCompression)
  }
docs: // WriteDeflate writes response with deflated body to w.
  //
  // The method deflates response body and sets 'Content-Encoding: deflate'
  // header before writing response to w.
  //
  // WriteDeflate doesn't flush response to w for performance reasons.