def test_contains(self):
        prio_set_list = event._PrioritizedSetList()
        obj = object()

        prio_set_list.add(0, obj)
        assert obj in prio_set_list
def __init__(self, config_l, path=None, resolver=None):
        super().__init__(path=path, resolver=resolver)
        self._collection = []
        for key, value in enumerate(config_l):
            self._collection.append(self._from_python(str(key), value))