unregist listen subclass unregist event properti chang listen listen object model properti name model model defin log lp log granular type statement lp log local nest statement log debug enabl log debug unregist properti format arrai properti name listen listen endif collect subtyp subtyp map registr mutex listen class unregist listen properti name subtyp subtyp listen class unregist listen subtyp properti name illeg argument except don know unregist event object model 