Method close

python/python3/tornado/websocket.py:659–660

(self, code: Optional[int] = None, reason: Optional[str] = None)

    @abc.abstractmethod
    def close(self, code: Optional[int] = None, reason: Optional[str] = None) -> None:
        raise NotImplementedError()

    @abc.abstractmethod
    def is_closing(self) -> bool: