deferred class EV_HELP_CONTEXTABLE_I Ancestors EV_ANY_I* Descendants EV_WIDGET_I* Clients EV_HELP_CONTEXTABLE* EV_HELP_CONTEXTABLE_I* Suppliers BOOLEAN EV_CONTAINER* EV_HELP_CONTEXTABLE_I* EV_WIDGET_I* FUNCTION [BASE_TYPE, OPEN_ARGS -> TUPLE create default_create end, RESULT_TYPE]