DummyAgent freezes the script execution about spade HOT 4 CLOSED

from spade import agent
from spade import quit_spade

class DummyAgent(agent.Agent):
    async def setup(self):
        print("Hello World! I'm agent{}".format(str(self.jid)))

dummy = DummyAgent("your_jid@your_xmpp_server", "your_password")

dummy.start()

dummy.stop()

quit_spade()

C:\Users\jatko\AppData\Local\Programs\Python\Python37-32\lib\site-packages\spade\container.py:136: RuntimeWarning: coroutine 'wait_for' was never awaited
  asyncio.wait_for(future, timeout=5)
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
Task was destroyed but it is pending!
task: <Task pending coro=<Agent._async_start() running at C:\Users\jatko\AppData\Local\Programs\Python\Python37-32\lib\site-packages\spade\agent.py:86> cb=[_chain_future.<locals>._call_set_state() at C:\Users\jatko\AppData\Local\Programs\Python\Python37-32\lib\asyncio\futures.py:355]>
Task was destroyed but it is pending!
task: <Task pending coro=<Agent._async_stop() running at C:\Users\jatko\AppData\Local\Programs\Python\Python37-32\lib\site-packages\spade\agent.py:254> cb=[_chain_future.<locals>._call_set_state() at C:\Users\jatko\AppData\Local\Programs\Python\Python37-32\lib\asyncio\futures.py:355]>
sys:1: RuntimeWarning: coroutine 'Agent._async_start' was never awaited
sys:1: RuntimeWarning: coroutine 'Agent._async_stop' was never awaited