Interface ContactPoint

interface ContactPoint {
    period?: Period;
    rank?: number;
    _rank?: Element;
    system?: "url" | "phone" | "fax" | "email" | "pager" | "sms" | "other";
    _system?: Element;
    use?: "home" | "work" | "temp" | "old" | "mobile";
    _use?: Element;
    value?: string;
    _value?: Element;
    id?: string;
    _id?: Element;
}