docs: async def get_final_destination(self):
          """Get a list of final destinations for a stop."""
          dest = []
          await self.get_departures()
          for departure in self._departures:
              dep = {}
              dep['line'] = departure.get('line')
              dep['destination'] = departure.get('destination')
              dest.append(dep)
          return [dict(t) for t in {tuple(d.items()) for d in dest}]