python/qemu: qmp: Make accept()'s timeout configurable

            return self.__negotiate_capabilities()

        return None

    def accept(self):

    def accept(self, timeout=15.0):

        """

        Await connection from QMP Monitor and perform capabilities negotiation.

        @param timeout: timeout in seconds (nonnegative float number, or

                        None). The value passed will set the behavior of the

                        underneath QMP socket as described in [1]. Default value

                        is set to 15.0.

        @return QMP greeting dict

        @raise OSError on socket connection errors

        @raise QMPConnectError if the greeting is not received

        @raise QMPCapabilitiesError if fails to negotiate capabilities

        [1]

        https://docs.python.org/3/library/socket.html#socket.socket.settimeout

        """

        self.__sock.settimeout(15)

        self.__sock.settimeout(timeout)

        self.__sock, _ = self.__sock.accept()

        self.__sockfile = self.__sock.makefile()

        return self.__negotiate_capabilities()