<pre>
obj.network.simple_request('FM_AOUS_RETRIEVE',[ obj.session.key, obj.list.au[0].ws_ou() ]);
which corresponds to:
'FM_AOUS_RETRIEVE' : { 'app' : 'open-ils.actor', 'method' : 'open-ils.actor.org_unit_setting.values.ranged.retrieve' },
</pre>