import clashroyale, asyncio


async def top(client):
    p = await client.get_top_players()
    return p


async def main():
    token = "my token"
    cr = clashroyale.official_api.Client(token=token, is_async=True)
    try:
        topplayers = top(cr)
        # more methods
    finally:
        await cr.session.close()

asyncio.run(main())