human
Solve the following python programming problem given the following code:
@ pytest.fixture 
def app(request, manager, watcher) : 
    app = App ().register (request) 
    watcher.wait ('registered') 
    def finalizer() : 
        app.unregister () 
request.addfinalizer (finalizer) 
    return app 

    
    

    Fix the buggy line: app = App ().register (request)
assistant
#Here is Python code to fix the buggy line: app = App ().

app = App ().register (manager)