code: func IPs() (IPRanges, error) {
  	resp, err := http.Get(apiURL + "/ips")
  	if err != nil {
  		return IPRanges{}, errors.Wrap(err, "HTTP request failed")
  	}
  	defer resp.Body.Close()
  	body, err := ioutil.ReadAll(resp.Body)
  	if err != nil {
  		return IPRanges{}, errors.Wrap(err, "Response body could not be read")
  	}
  	var r IPsResponse
  	err = json.Unmarshal(body, &r)
  	if err != nil {
  		return IPRanges{}, errors.Wrap(err, errUnmarshalError)
  	}
  	return r.Result, nil
  }
docs: // IPs gets a list of Cloudflare's IP ranges.
  //
  // This does not require logging in to the API.
  //
  // API reference: https://api.cloudflare.com/#cloudflare-ips