human
Solve the following python programming problem given the following code:
@ simple_decorator 
def valid_prefs_required(view_func) : 
    "Check whether the profile object exists.

    Several views assume that the user profile object exists, and will break if
    it doesn't. This decorator will ensure that the profile exists before the
    view code runs.

    If the user is not logged in, this will do nothing. That allows it to
    be used with @check_login_required.
    " 
    def _check_valid_prefs(request, * args, **kwargs) : 
        if request.user.is_authenticated () : 
            Profile.objects.get_or_create (user = request.user) 
return view_func (request, * args, ** kwargs) 
return view_func 

    
    

    Fix the buggy line: return view_func
assistant
#Here is Python program to fix the buggy line: return view_func
.

return def _check_valid_prefs(