human
Solve the following python programming problem given the following code:
@ classmethod 
def tag_rule(cls, tag, filter = Filter.null) : 
    @ Generator 
    def generator(entry) : 
        return entry.account.get_tag (tag) (entry) 
return Rule ((cls.tag_filter (tag) & filter), tag) 

    
    

    Fix the buggy line: return Rule ((cls.tag_filter (tag) & filter), tag)
assistant
#Here is Python code to fix the buggy line: return Rule ((cls.

return Rule ((cls.tag_filter (tag) & filter), def generator()