def now(cls, *args, **kwargs):
    """Get a timestamp corresponding to right now.

    Args:
      args: Positional arguments to pass to datetime.datetime.now().
      kwargs: Keyword arguments to pass to datetime.datetime.now(). If tz is not
              specified, local timezone is assumed.

    Returns:
      A new BaseTimestamp with tz's local day and time.
    """
    return cls.AddLocalTimezone(
        super(BaseTimestamp, cls).now(*args, **kwargs))