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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 portalAdmin(self):
 """gets a reference to a portal administration class"""

        from ..manageportal import PortalAdministration
        return PortalAdministration(admin_url="https://%s/portaladmin" % self.portalHostname,
                                    securityHandler=self._securityHandler,
                                    proxy_url=self._proxy_url,
                                    proxy_port=self._proxy_port,
                                    initalize=False)