code: func Close(resp *http.Response) {
  	if resp != nil {
  		if _, err := io.Copy(ioutil.Discard, resp.Body); err != nil {
  			return
  		}
  		resp.Body.Close()
  	}
  }
docs: // Close reads the remaining bytes from the response and then closes it to
  // ensure that the connection is freed. If the body is not read and closed, a
  // leak can occur.