(self, payload)
send pong data.

        payload: data payload to send server.
send pong data.
send pong data .
def pong(self, payload):
        """
        send pong data.

        payload: data payload to send server.
        """
        self.send(payload, ABNF.OPCODE_PONG)
def pong ( self , payload ) : self . send ( payload , ABNF . OPCODE_PONG )