Convert to a native Python `datetime.time` value.

def to_native(self):
        """ Convert to a native Python `datetime.time` value.
        """
        h, m, s = self.hour_minute_second
        s, ns = nano_divmod(s, 1)
        ms = int(nano_mul(ns, 1000000))
        return time(h, m, s, ms)