def connected(result, uris):
                for uri in uris:
                    fetch_dfr = self.client.request(str(uri.path+'?'+uri.get_params_string()))
                    fetch_dfr.addCallback(fetched)
                    fetch_dfr.addCallback(streamed)
                fetch_dfr.chainDeferred(dfr)
                return fetch_dfr
            
            def fetched(response):
                return BufferedStream(response.stream).readExactly()
                
            def streamed(data):
                lm.extend([self._create_model(unit) for unit in simplejson.loads(data)])
                return lm
            
            connect_dfr = self.client.open(MediaUri(self.ml2_base).host)
            connect_dfr.addCallback(connected, ml2_uris[1])