Get departure information.

def departure(stop, destination):
    """Get departure information."""
    from pyruter.api import Departures

    async def get_departures():
        """Get departure information."""
        async with aiohttp.ClientSession() as session:
            data = Departures(LOOP, stop, destination, session)
            await data.get_departures()
            print(json.dumps(data.departures, indent=4, sort_keys=True))
    LOOP.run_until_complete(get_departures())