code: func encryptAndEncode(s string) (string, error) {
  	encrypted, err := util.Encrypt([]byte(s), setting.SecretKey)
  	if err != nil {
  		return "", err
  	}
  	return base64.StdEncoding.EncodeToString(encrypted), nil
  }
docs: // encryptAndEncode will encrypt a string with grafana's secretKey, and
  // then encode it with the standard bas64 encoder