docs: def get_future(self):
          """Get current and future forecasts."""
          now = dt.now()
          four_days = now + timedelta(hours=96)
          now = now.timestamp()
          four_days = four_days.timestamp()
          url = build_url(self.api_key, self.spot_id, self.fields,
                          self.unit, now, four_days)
          return get_msw(url)