class Interval:
class Type:
One_Day = 'P1D',
One_Week = 'P1W',
One_Month = 'P1M',
Three_Months = 'P3M',
Six_Months = 'P6M',
One_Year = 'P1Y',
Three_Years = 'P3Y',
Five_Years = 'P5Y',
Max = 'P50Y'