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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def secure(view):
 """ Authentication decorator for views. If DEBUG is on, we serve the view without authenticating. Default is 'django.contrib.auth.decorators.login_required'. Can also be 'django.contrib.admin.views.decorators.staff_member_required' or a custom decorator. """

    auth_decorator = import_class(settings.AUTH_DECORATOR)
    return (
        view if project_settings.DEBUG
        else method_decorator(auth_decorator, name='dispatch')(view)
    )