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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def hydrate_time(nanoseconds, tz=None):
 """ Hydrator for `Time` and `LocalTime` values. :param nanoseconds: :param tz: :return: Time """

    seconds, nanoseconds = map(int, divmod(nanoseconds, 1000000000))
    minutes, seconds = map(int, divmod(seconds, 60))
    hours, minutes = map(int, divmod(minutes, 60))
    seconds = (1000000000 * seconds + nanoseconds) / 1000000000
    t = Time(hours, minutes, seconds)
    if tz is None:
        return t
    tz_offset_minutes, tz_offset_seconds = divmod(tz, 60)
    zone = FixedOffset(tz_offset_minutes)
    return zone.localize(t)