human
Solve the following python programming problem given the following code:
def __call__(self, f) : 
    if isinstance (f, ClassTypes) : 
        return self.decorate_class (_inner) 
@ wraps (f) 
    def _inner(* args, **kw) : 
        self._patch_dict () 
        try : 
            return f (* args, ** kw) 
finally : 
            self._unpatch_dict () 
return _inner 

    
    

    Fix the buggy line: return self.decorate_class (_inner)
assistant
#Here is Python program to fix the buggy line: return self.

return self.decorate_class (f)