search descend recurs stereotyp given note probabl don want us search wrong direct param obj model element suitabl param root model element search param stereotyp search stereotyp name object stereotyp contain object obj object root object stereo root model facad stereotyp root equal model facad root model extens mechan helper valid stereotyp obj root root model facad namespac root collect own element model facad own element root loop element namespac recurs object own element own element stereo stereotyp contain obj own element stereo stereo 