func LoadFromEmbeddedTZData(zone string) (string, error) {
	return loadFromEmbeddedTZData(zone)
}

type RuleKind int

const (
	RuleJulian       = RuleKind(ruleJulian)
	RuleDOY          = RuleKind(ruleDOY)
	RuleMonthWeekDay = RuleKind(ruleMonthWeekDay)
	UnixToInternal   = unixToInternal
)

type Rule struct {
	Kind RuleKind
	Day  int
	Week int
	Mon  int
	Time int
}

func TzsetRule(s string) (Rule, string, bool) {