@classmethod
def _bind_class_state(cls, state_dict):
    """
        Bind the state contained in state_dict to ResourceIdentifier class.
        """
    cls._parent_id_tree = state_dict['parent_id_tree']
    cls._id_order = state_dict['id_order']
    cls._id_object_map = state_dict['id_object_map']
    cls._get_referred_object_hook = state_dict['get_object_hook']
