Method write_ping

python/python3/tornado/websocket.py:1098–1101

Send ping frame.

(self, data: bytes)

        return asyncio.ensure_future(wrapper())

    def write_ping(self, data: bytes) -> None:
        """Send ping frame."""
        assert isinstance(data, bytes)
        self._write_frame(True, 0x9, data)

    async def _receive_frame_loop(self) -> None:
        try: