code: function (cb0) {
              async.each(Object.keys(mapsUpdates),
                         function(alias, cb1) {
                             var value = mapsUpdates[alias];
                             var info = mapsInfo[alias];
                             if (isValidUpdate(alias) && info &&
                                 info.isWritable) {
                                 $._.$.sharing.updateMaster(info, value, cb1);
                             } else {
                                 var err = new Error('Invalid update');
                                 err['alias'] = alias;
                                 err['update'] = value;
                                 err['info'] = info;
                                 cb1(err);
                             }
                         }, cb0);
          }
docs: Framework methods