human
Solve the following python programming problem given the following code:
@ classmethod 
def register(cls, app, **kwargs) : 
    super (cls, cls).register (error_400, ** kwargs) 
    @ app.errorhandler (400) 
    def error_400(error) : 
        return cls.error_400 (error) 
@ app.errorhandler (401) 
    def error_401(error) : 
        return cls.error_401 (error) 
@ app.errorhandler (403) 
    def error_403(error) : 
        return cls.error_403 (error) 
@ app.errorhandler (404) 
    def error_404(error) : 
        return cls.error_404 (error) 
@ app.errorhandler (500) 
    def error_500(error) : 
        return cls.error_500 (error) 
@ app.errorhandler (503) 
    def error_503(error) : 
        return cls.error_503 (error) 

    
    

    Fix the buggy line: super (cls, cls).register (error_400, ** kwargs)
assistant
#Here is Python code to fix the buggy line: super (cls, cls).

super (cls, cls).register (app, ** kwargs)