version

type Action interface {
	fmt.Stringer

	HandshakeName() string
	Unmarshal(b []byte) (any, error)
}

type DateRangeProvider interface {
	DateRange() timex.DateRange
}

type HotelCodeProvider interface {
	HotelCode() string
}

type Version[A Action] interface {
	fmt.Stringer

	ValidateXML(xml string) error
}