public static void event_with_object_payload()
{
var obj = new Dummy.TestObject();
Dummy.TestObject received_obj = null;
obj.EvtWithObjEvent += (object sender, Dummy.TestObjectEvtWithObjEventArgs e) => {
received_obj = e.arg;
};
var sent_obj = new Dummy.TestObject();
obj.EmitEventWithObj(sent_obj);
Test.AssertEquals(sent_obj, received_obj);
}