How to use the websockify.websockifyserver.WebSockifyServer.socket function in websockify

# Connect to the target
        if self.server.wrap_cmd:
            msg = "connecting to command: '%s' (port %s)" % (" ".join(self.server.wrap_cmd), self.server.target_port)
        elif self.server.unix_target:
            msg = "connecting to unix socket: %s" % self.server.unix_target
        else:
            msg = "connecting to: %s:%s" % (
                                    self.server.target_host, self.server.target_port)

        if self.server.ssl_target:
            msg += " (using SSL)"
        self.log_message(msg)

        try:
            tsock = websockifyserver.WebSockifyServer.socket(self.server.target_host,
                                                           self.server.target_port,
                                                           connect=True,
                                                           use_ssl=self.server.ssl_target,
                                                           unix_socket=self.server.unix_target)
        except Exception:
            self.log_message("Failed to connect to %s:%s",
                             self.server.target_host, self.server.target_port)
            raise self.CClose(1011, "Failed to connect to downstream server")

        self.request.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
        if not self.server.wrap_cmd and not self.server.unix_target:
            tsock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)

        self.print_traffic(self.traffic_legend)

        # Start proxying

# Checking for a token is done in validate_connection()

        # Connect to the target
        if self.server.wrap_cmd:
            msg = "connecting to command: '%s' (port %s)" % (" ".join(self.server.wrap_cmd), self.server.target_port)
        elif self.server.unix_target:
            msg = "connecting to unix socket: %s" % self.server.unix_target
        else:
            msg = "connecting to: %s:%s" % (
                                    self.server.target_host, self.server.target_port)

        if self.server.ssl_target:
            msg += " (using SSL)"
        self.log_message(msg)

        tsock = websockifyserver.WebSockifyServer.socket(self.server.target_host,
                                                       self.server.target_port,
                                                       connect=True,
                                                       use_ssl=self.server.ssl_target,
                                                       unix_socket=self.server.unix_target)

        self.request.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
        if not self.server.wrap_cmd and not self.server.unix_target:
            tsock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)

        self.print_traffic(self.traffic_legend)

        # Start proxying
        try:
            self.do_proxy(tsock)
        except:
            if tsock:

# Checking for a token is done in validate_connection()

        # Connect to the target
        if self.server.wrap_cmd:
            msg = "connecting to command: '%s' (port %s)" % (" ".join(self.server.wrap_cmd), self.server.target_port)
        elif self.server.unix_target:
            msg = "connecting to unix socket: %s" % self.server.unix_target
        else:
            msg = "connecting to: %s:%s" % (
                                    self.server.target_host, self.server.target_port)

        if self.server.ssl_target:
            msg += " (using SSL)"
        self.log_message(msg)

        tsock = websockifyserver.WebSockifyServer.socket(self.server.target_host,
                                                       self.server.target_port,
                                                       connect=True,
                                                       use_ssl=self.server.ssl_target,
                                                       unix_socket=self.server.unix_target)

        self.request.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
        if not self.server.wrap_cmd and not self.server.unix_target:
            tsock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)

        self.print_traffic(self.traffic_legend)

        # Start proxying
        try:
            self.do_proxy(tsock)
        except:
            if tsock: