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    @threadless

    def shell_resize(self, label, row, col, xpixel, ypixel):

        """Resize the rshell."""

        """Resize the shell's attached terminal."""

        self.shells[label].resize(row, col, xpixel, ypixel)

    @pass_connection

    def forward(self, conn, label, port, destination='127.0.0.1'):

        # create socket

        """TCP port forwarding."""

        try:

            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

        except socket.error:

        except socket.error:

            logger.exception('Error while connecting to destination (forward)')

            raise

        # create tunnel

        conn.create_tunnel(label=label, endpoint=sock)

    @pass_connection