deferred class
	EV_TREE_NODE_LIST_I

Ancestors
	EV_ITEM_LIST_I* [reference G -> EV_ITEM]

Descendants
	EV_TREE_I*
	EV_TREE_ITEM_I*
	EV_TREE_NODE_I*

Clients
	EV_TREE_NODE_LIST*
	EV_TREE_NODE_LIST_I*

Suppliers
	ANY
	ARRAYED_LIST [G]
	BOOLEAN
	EV_ITEM_LIST* [reference G -> EV_ITEM]
	EV_TREE_NODE*
	EV_TREE_NODE_I*
	EV_TREE_NODE_LIST_I*
	PROCEDURE [BASE_TYPE, OPEN_ARGS -> TUPLE create default_create end]