def on_success(self, data):  
return True<EOL>
Called when data has been successfully received from the stream.
        Returns True if other handlers for this message should be invoked.

        Feel free to override this to handle your streaming data how you
        want it handled. See
        https://developer.twitter.com/en/docs/tweets/filter-realtime/guides/streaming-message-types
        for messages sent along in stream responses.

        :param data: data recieved from the stream
        :type data: dict