how to use machine parameter?

[yabb85]

I try to execute equivalent code as:

systemctl --user --machine=myuser@ show --property=ActiveState,SubState mopidy

I tried the following code, but I can't see my user service:

with DBus(user_mode=True) as bus:
     with Manager(bus=bus) as m:
         for unit_info in m.Manager.ListUnits():
             unit = Unit(unit_info[0], _autoload=True)
             if 'mopidy' in unit.Unit.Names:
                 print(unit.Unit.Names, unit.Unit.ActiveState)

Do you know how to use equivalent of parameter --machine with pystemd please?