code: func (api *API) SSLDetails(zoneID, certificateID string) (ZoneCustomSSL, error) {
  	uri := "/zones/" + zoneID + "/custom_certificates/" + certificateID
  	res, err := api.makeRequest("GET", uri, nil)
  	if err != nil {
  		return ZoneCustomSSL{}, errors.Wrap(err, errMakeRequestError)
  	}
  	var r zoneCustomSSLResponse
  	if err := json.Unmarshal(res, &r); err != nil {
  		return ZoneCustomSSL{}, errors.Wrap(err, errUnmarshalError)
  	}
  	return r.Result, nil
  }
docs: // SSLDetails returns the configuration details for a custom SSL certificate.
  //
  // API reference: https://api.cloudflare.com/#custom-ssl-for-a-zone-ssl-configuration-details