Action server is blocking even though I have async run function

Rasa Open Source
1

I have a bot which makes a request on an api that is implemented with fastapi(but it is not asynchronous). I want the bot not to be blocked when I call it from action server, as it takes more than 30 seconds the response to come. I have implemented the following code in actions.py but does not work. When I test it in rasa shell, the console is blocked until the response come back. What am I missing

class ActionTest(Action):

    def name(self) -> Text:
        return "action_test"

    async def run(self, dispatcher: CollectingDispatcher,
            tracker: Tracker,
            domain: Dict[Text, Any]) -> List[Dict[Text, Any]]:

        async with aiohttp.ClientSession() as session:
            async with session.get("non async api url") as resp:
                response = await resp.json()

        dispatcher.utter_message(text=response["abstract"])


        return []

@nik202