def show_text(self, text):
        raise NotImplementedError()
Returns the AppIdNamespace of this entity or None if not set.
dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/runtime/south/plugins/io/display/base_display.py/DisplayBase.show_text--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/api/datastore.py/Entity.app_id_namespace