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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 portals(self):
 """returns the Portals class that provides administration access into a given organization"""

        url = "%s/portals" % self.root
        return _portals.Portals(url=url,
                                securityHandler=self._securityHandler,
                                proxy_url=self._proxy_url,
                                proxy_port=self._proxy_port)