code: def administration(self):
          
          from ..manageags._services import AGSService
          url = self._url
          res = search("/rest/", url).span()
          addText = "/admin/"
          part1 = url[:res[1]].lower().replace('/rest/', '')
          part2 = url[res[1]:].lower().replace('/featureserver', ".mapserver")
          adminURL = "%s%s%s" % (part1, addText, part2)
          return AGSService(url=adminURL,
                            securityHandler=self._securityHandler,
                            proxy_url=self._proxy_url,
                            proxy_port=self._proxy_port,
                            initialize=False)
docs: returns the service admin object (if accessible)