sync.Once // for for lazy load of mapOfList since it is only needed if Equals is called
	mapOfList map[interface{}]interface{}
}

func (t *unstructuredMapList) getMap() map[interface{}]interface{} {
	t.Do(func() {
		t.mapOfList = make(map[interface{}]interface{}, len(t.elements))
		for _, e := range t.elements {
			t.mapOfList[t.toMapKey(e)] = e
		}
	})
	return t.mapOfList
}