collect featur avail featur object arol defin log lp log granular type statement lp log local start method log info avail featur start endif arol classifi role list featur list arrai list featur classifi role role classifi role arol model element gen elem core helper mdr impl parent role gen elem classifi role list add avail featur gen elem classifi classifi role base list add classifi featur defin log lp log granular type statement lp log local nest statement log info avail featur list size endif list invalid object except invalid element except illeg argument except avail featur arol 