Wyng for Noobs

@tasket Hello, I know your busy I appreciate when you can look at this. I was trying to restore from my backup after a unsuccessful inplace upgrade from 4.2.4 to 4.3
The restore seems to be going well until it gets to restoring vm settings of the sys-net. Wyng 0.8 rc1 release 20250904

 sys-net
Traceback (most recent call last):
  File "/usr/local/bin/wyng-util-qubes", line 913, in <module>
    elif action == "restore":    wq_context.restore()
                                 ^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/bin/wyng-util-qubes", line 810, in restore
    res = _do_restore(self, selected=vms, session=session)   ; self.close()
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/bin/wyng-util-qubes", line 527, in _do_restore
    assig = DevAssg.new(backend_domain=live_qubes[backend], port_id=ident,
            ^^^^^^^^^^^
AttributeError: type object 'DeviceAssignment' has no attribute 'new'