def remove_menu_items(self, pkg):
        if pkg.menu_items():
            app = get_vistrails_application()
            app.send_notification("pm_remove_package_menu",
                                   pkg.identifier)
            # self.emit(self.remove_package_menu_signal,
            #           pkg.identifier)
Activate the testbed.
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/core/packagemanager.py/PackageManager.remove_menu_items--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/ext/testbed/__init__.py/Testbed.activate