human
Solve the following python programming problem given the following code:
def __call__(self, cutpoint_function) : 
    if isgeneratorfunction (cutpoint_function) : 
        if PY3 : 
            from aspectlib.py3support import decorate_advising_generator_py3 
            return decorate_advising_generator_py3 (self.advising_function, cutpoint_function, self.bind) 
else : 
            def advising_generator_wrapper(* args, **kwargs) : 
                if self.bind : 
                    advisor = self.advising_function (cutpoint_function, * args, ** kwargs) 
else : 
                    advisor = self.advising_function (* args, ** kwargs) 
if (not isgenerator (advisor)) : 
                    raise ExpectedGenerator (('advising_function %s did not return a generator.' % self.advising_function)) 
try : 
                    advice = next (advisor) 
                    while True : 
                        logdebug ('Got advice %r from %s', advice, self.advising_function) 
                        if ((advice is Proceed) or (advice is None) or isinstance (advice, Proceed)) : 
                            if isinstance (advice, Proceed) : 
                                args = advice.args 
                                kwargs = advice.kwargs 
gen = cutpoint_function (* args, ** kwargs) 
                            try : 
                                try : 
                                    generated = next (gen) 
except StopIteration as exc : 
                                    logexception ('The cutpoint has been exhausted (early).') 
                                    result = exc.args 
                                    if result : 
                                        if (len (result) == 1) : 
                                            result = exc.args [0] 
else : 
                                        result = None 
else : 
                                    while True : 
                                        try : 
                                            sent = (yield generated) 
except GeneratorExit as exc : 
                                           ...
    
    Given the code above, what is a proper replacement for <MASK>? Choose among: self, advising_function_wrapper, cutpoint_function
assistant
#Here is a proper replacement for <MASK>.
def advising_generator_wrapper(