Gio.DBusConnection.guid
DBusConnection.guid: String (Read / Write / Construct Only)
The GUID of the peer performing the role of server when authenticating.
If you are constructing a Gio.DBusConnection and pass Gio.DBusConnectionFlags.authentication_server in the Gio.DBusConnection.flags property then you MUST also set this property to a valid guid.
If you are constructing a Gio.DBusConnection and pass Gio.DBusConnectionFlags.authentication_client in the Gio.DBusConnection.flags property you will be able to read the GUID of the other peer here after the connection has been successfully initialized.
Since 2.26