human
Solve the following python programming problem given the following code:
def create_stubbed_exception(cls, status_code = 500) : 
    msg = 'Expected failure.' 
    def fake_init_exception(self, code = None, message = None, **kwargs) : 
        if (code is not None) : 
            if hasattr (self, 'http_status') : 
                self.http_status = code 
else : 
                self.code = code 
self.message = (message or self.__class__.message) 
        try : 
            self.message = (self.message % kwargs) 
except Exception : 
            pass 
def fake_str(self) : 
        return str (self.message) 
def fake_unicode(self) : 
        return six.text_type (self.message) 
cls.__init__ = <MASK> 
    cls.__str__ = fake_str 
    cls.__unicode__ = fake_unicode 
    cls.silence_logging = True 
    return cls (status_code, msg) 
    
    Given the code above, what is a proper replacement for <MASK>?
assistant
#Here is a proper replacement for <MASK>.
def fake_init_exception(