code: def set_stepdown_window(self, start, end, enabled=True, scheduled=True, weekly=True):
          
          # Ensure a logical start and endtime is requested.
          if not start < end:
              raise TypeError('Parameter "start" must occur earlier in time than "end".')
  
          # Ensure specified window is less than a week in length.
          week_delta = datetime.timedelta(days=7)
          if not ((end - start) <= week_delta):
              raise TypeError('Stepdown windows can not be longer than 1 week in length.')
  
          url = self._service_url + 'stepdown/'
          data = {
              'start': int(start.strftime('%s')),
              'end': int(end.strftime('%s')),
              'enabled': enabled,
              'scheduled': scheduled,
              'weekly': weekly,
          }
  
          response = requests.post(
              url,
              data=json.dumps(data),
              **self._instances._default_request_kwargs
          )
          return response.json()
docs: Set the stepdown window for this instance.
  
          Date times are assumed to be UTC, so use UTC date times.
  
          :param datetime.datetime start: The datetime which the stepdown window is to open.
          :param datetime.datetime end: The datetime which the stepdown window is to close.
          :param bool enabled: A boolean indicating whether or not stepdown is to be enabled.
          :param bool scheduled: A boolean indicating whether or not to schedule stepdown.
          :param bool weekly: A boolean indicating whether or not to schedule compaction weekly.