// ErrorUrl is an argument of a request.
//
// Max 64 caracteres.
ErrorUrl is an argument of a request.

Max 64 caracteres.
// ErrorUrl is an argument of a request . // // Max 64 caracteres .
func ExternalId(val string) Argument {
	return func(request *requests.Request) error {
		request.AddArgument("external_id", val)
		if len(val) > 64 {
			return errors.New("callback url too long, max 64 caracteres")
		}
		return nil
	}
}
func ExternalId ( val string ) Argument { return func ( request * requests . Request ) error { request . AddArgument ( " " , val ) if len ( val ) > 64 { return errors . New ( " " ) } return nil } }
ErrorUrl is an argument of a request.
ErrorUrl is an argument of a request .