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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 dir_exists(self):
 """ Makes a ``HEAD`` requests to the URI. :returns: ``True`` if status code is 2xx. """


        r = requests.request(self.method if self.method else 'HEAD', self.url, **self.storage_args)
        try: r.raise_for_status()
        except Exception: return False

        return True