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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 save_config(self):
 """Save the config, update the seqnum & default language """

        self.__config.set('agent', 'seqnum', self.__client.get_seqnum())
        self.__config.set('agent', 'lang', self.__client.default_lang)
        self.__config.save()