Obtains a #GDBusMenuModel for the menu model which is exported
at the given @bus_name and @object_path.
The thread default main context is taken at the time of this call.
All signals on the menu model (and any linked models) are reported
with respect to this context. All calls on the returned menu model
(and linked models) must also originate from this same context, with
the thread default main context unchanged.
Obtains a #GDBusMenuModel for the menu model which is exported at the given @bus_name and @object_path.
The thread default main context is taken at the time of this call. All signals on the menu model (and any linked models) are reported with respect to this context. All calls on the returned menu model (and linked models) must also originate from this same context, with the thread default main context unchanged.