<node> <interface name="org.freedesktop.PackageKit.Offline"> <property name="UpdatePrepared" type="b" access="read"/> <property name="UpdateTriggered" type="b" access="read"/> <property name="UpgradePrepared" type="b" access="read"/> <property name="UpgradeTriggered" type="b" access="read"/> <property name="PreparedUpgrade" type="a{sv}" access="read"/> <method name="Trigger"> <arg type="s" name="action" direction="in"/> </method> <method name="Cancel"/> </interface> </node>