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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 get_arg_parser (self, **kwargs):
 """Return an instance of `argparse.ArgumentParser` used to process this tool's command-line arguments. """

        import argparse
        ap = argparse.ArgumentParser (
            prog = kwargs['argv0'],
            description = self.summary,
        )
        return ap