code: def future_date(end='+30d'):
      
      return lambda n, f: f.future_date(
          end_date=end, tzinfo=get_timezone(),
      )
docs: Returns a ``date`` object in the future (that is, 1 day from now) up to
      the specified ``end``. ``end`` can be a string, another date, or a
      timedelta. If it's a string, it must start with `+`, followed by and integer
      and a unit, Eg: ``'+30d'``. Defaults to `'+30d'`
  
      Valid units are:
      * ``'years'``, ``'y'``
      * ``'weeks'``, ``'w'``
      * ``'days'``, ``'d'``
      * ``'hours'``, ``'hours'``
      * ``'minutes'``, ``'m'``
      * ``'seconds'``, ``'s'``