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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 run_from_argv(self, argv):
 """ Called when run from the command line. """

        try:
            return self.main(args=argv[2:], standalone_mode=False)
        except click.ClickException as e:
            if getattr(e.ctx, 'traceback', False):
                raise
            e.show()
            sys.exit(e.exit_code)