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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def delete_cookie(self, cookie_name=None):
 """ Create a cookie that will immediately expire when it hits the other side. :param cookie_name: Name of the cookie :return: A tuple to be added to headers """

        if cookie_name is None:
            cookie_name = self.default_value['name']

        return self.create_cookie("", "", cookie_name=cookie_name, kill=True)