How to use the janus.__init__._AsyncQueueProxy function in janus

callback: Callable[..., None], *args: Any) -> None:
            try:
                self._loop.call_soon_threadsafe(callback, *args)
            except RuntimeError:
                # swallowing agreed in #2
                pass
        self._call_soon_threadsafe = checked_call_soon_threadsafe

        def checked_call_soon(
                callback: Callable[..., None], *args: Any) -> None:
            if not self._loop.is_closed():
                self._loop.call_soon(callback, *args)
        self._call_soon = checked_call_soon

        self._sync_queue = _SyncQueueProxy(self)
        self._async_queue = _AsyncQueueProxy(self)