code: def getItem(self, itemId):
          
          url = "%s/items/%s" % (self.root, itemId)
          return Item(url=url,
                      securityHandler=self._securityHandler,
                      proxy_url=self._proxy_url,
                      proxy_port=self._proxy_port)
docs: gets the refernce to the Items class which manages content on a
          given AGOL or Portal site.