deferred class EV_CHECKABLE_TREE_ACTION_SEQUENCES_I Ancestors ANY Descendants EV_CHECKABLE_TREE_ACTION_SEQUENCES_IMP EV_CHECKABLE_TREE_I* Clients EV_CHECKABLE_TREE_ACTION_SEQUENCES* EV_CHECKABLE_TREE_ACTION_SEQUENCES_I* Suppliers EV_CHECKABLE_TREE_ACTION_SEQUENCES_I*