    def subscribe(self, uuid, websocket):
        """Add a websocket to the list of subscribers.

        Args:
            uuid (str): a unique identifier for the websocket.
            websocket: the websocket to publish information.
        """

        self.subscribers[uuid] = websocket
Add a websocket to the list of subscribers.

Args:
uuid (str): a unique identifier for the websocket.
websocket: the websocket to publish information.
bigchaindb/web/websocket_server.py