Interface MonthlyRecurrence

interface MonthlyRecurrence {
    dayOfMonth?: number;
    dayOfWeek?:
        | SUN
        | MON
        | TUES
        | WED
        | THURS
        | FRI
        | SAT
        | DAY
        | WEEKDAY
        | WEEKEND;
    end: RecurrenceEnd;
    interval: number;
    type: MonthlyTypes;
    weekOfMonth?: FIRST
    | SECOND
    | THIRD
    | FOURTH
    | LAST;
}