month.cmp(other: MonthValue): 1 | -1 | 0;
month.eq(other: MonthValue): boolean;
month.ne(other: MonthValue): boolean;
month.gt(other: MonthValue): boolean;
month.ge(other: MonthValue): boolean;
month.lt(other: MonthValue): boolean;
month.le(other: MonthValue): boolean;
Month.cmp(left: MonthValue, right: MonthValue): 1 | -1 | 0;
Month.eq(left: MonthValue, right: MonthValue): boolean;
Month.ne(left: MonthValue, right: MonthValue): boolean;
Month.gt(left: MonthValue, right: MonthValue): boolean;
Month.ge(left: MonthValue, right: MonthValue): boolean;
Month.lt(left: MonthValue, right: MonthValue): boolean;
Month.le(left: MonthValue, right: MonthValue): boolean;
Month.min(...values: MonthValue[]): MonthInstance;
Month.max(...values: MonthValue[]): MonthInstance;