def run(self, request_cb, notification_cb):
self._request_cb = request_cb<EOL>self._notification_cb = notification_cb<EOL>self._msgpack_stream.run(self._on_message)<EOL>self._request_cb = None<EOL>self._notification_cb = None<EOL>
Run the event loop to receive requests and notifications from Nvim.

        While the event loop is running, `request_cb` and `_notification_cb`
        will be called whenever requests or notifications are respectively
        available.