Finishes an operation started with g_dbus_connection_new(). Since 2.26
A GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_connection_new().
If true finish an address.
GException on failure. ConstructionException GTK+ fails to create the object.
See Implementation
Finishes an operation started with g_dbus_connection_new(). Since 2.26