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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 parse_args(self, args=None, namespace=None):
 """ Overrides argparse.ArgumentParser.parse_args Enables '@'-prefixed files to be expanded before arguments are processed by ArgumentParser.parse_args as usual """

        self._expand_prefixed_files(args)
        return super(CLICommandParser, self).parse_args(args)