add given edg graph correct type illeg argument except edg end param edg edg ad overrid add edg object edg edg illeg argument except add edg dest port edg sourc port edg illeg argument except sourc dest port provid edg defin log lp log granular type statement log info enabl log info ad edg type edg diagram endif add edg edg defin log lp log granular type statement lp log local log info attempt add edg reject endif edg add edg todo assum todo probabl undesir effect unless user confirm place element second diagram go potenti chang namespac tfm model facad model element edg model facad namespac edg model facad associ end edg model core helper add own element home model edg edg ad edg 