import threading


class AsyncKafka:
    """异步请求模块
    """
    __session = None
    __lock = threading.Lock()

    @classmethod
    async def __init_session(cls):
        if not cls.__session:
            with cls.__lock:
                if not cls.__session:
                    pass
                    # producer = AIOKafkaProducer(……)
                    # await producer.start()
                    # cls.__session = producer
        return cls.__session

    @classmethod
    async def async_push(cls, payload):
        if not cls.__session:
            await cls.__init_session()
        pass