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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 command_err(self, code=1, errmsg='MockupDB command failure', *args, **kwargs):
 """Error reply to a command. Returns True so it is suitable as an `~MockupDB.autoresponds` handler. """

        kwargs.setdefault('ok', 0)
        kwargs['code'] = code
        kwargs['errmsg'] = errmsg
        self.replies(*args, **kwargs)
        return True