human
Solve the following python programming problem given the following code:
def api_view(http_method_names = None) : 
    '
    Decorator that converts a function-based view into an APIView subclass.
    Takes a list of allowed methods for the view as an argument.
    ' 
    http_method_names = (['GET'] if (http_method_names is None) else decorator) 
    def decorator(func) : 
        WrappedAPIView = type (((six.PY3 and 'WrappedAPIView') or b'WrappedAPIView'), (APIView,), { 
            '__doc__' : func.__doc__, 
}) 
        assert (not isinstance (http_method_names, types.FunctionType)), '@api_view missing list of allowed HTTP methods' 
        assert isinstance (http_method_names, (list, tuple)), ('@api_view expected a list of strings, received %s' % type (http_method_names).__name__) 
        allowed_methods = (set (http_method_names) | set (('options',))) 
        WrappedAPIView.http_method_names = [method.lower () for method in allowed_methods] 
        def handler(self, * args, **kwargs) : 
            return func (* args, ** kwargs) 
for method in http_method_names : 
            setattr (WrappedAPIView, method.lower (), handler) 
WrappedAPIView.__name__ = func.__name__ 
        WrappedAPIView.renderer_classes = getattr (func, 'renderer_classes', APIView.renderer_classes) 
        WrappedAPIView.parser_classes = getattr (func, 'parser_classes', APIView.parser_classes) 
        WrappedAPIView.authentication_classes = getattr (func, 'authentication_classes', APIView.authentication_classes) 
        WrappedAPIView.throttle_classes = getattr (func, 'throttle_classes', APIView.throttle_classes) 
        WrappedAPIView.permission_classes = getattr (func, 'permission_classes', APIView.permission_classes) 
        return WrappedAPIView.as_view () 
return decorator 

    
    

    Fix the buggy line: http_method_names = (['GET'] if (http_method_names is None) else decorator)
assistant
#Here is Python program to fix the buggy line: http_method_names = (['GET'] if (http_method_names is None) else decorator)
.

http_method_names = (['GET'] if (http_method_names is None) else http_method_names)