bases.py 文件源码

def make_clock(effective_lower: dt.datetime,
                   vclock_lower: int,
                   **kwargs) -> _ClockSet:
        """construct a clock set tuple"""
        effective_upper = kwargs.get('effective_upper', None)
        vclock_upper = kwargs.get('vclock_upper', None)

        effective = psql_extras.DateTimeTZRange(
            effective_lower, effective_upper)
        vclock = psql_extras.NumericRange(vclock_lower, vclock_upper)

        return _ClockSet(effective, vclock)