rce
        installing the version 281.1 of xterm or "xterm/experimental" to
        force installing xterm from the experimental release.

        :param package_names: List of names of the packages which should be
            installed.

        :param wait: if True run the transaction immediately and return its
            exit state instead of the transaction itself.
        :param reply_handler: Callback function. If specified in combination
            with error_handler the method will be called asynchrounsouly.
        :param error_handler: Errback function. In case of an error the given
            callback gets the corresponding exception instance.
        :param defer: Run the method asynchrounsly and return a
            defer.Deferred. This options is only available as a keyword.

        :raises: dbus.DBusException

        :returns: An AptTransaction instance.
        ZInstallPackagesr§