queryByAttributeAsyncExample = function() {
            var query = new QueryByAttribute("contact", ["firstname"], ["test"], new ColumnSet("fullname"));
            orgService.retrieveMultipleAsync(query).then(function(contacts) {
                for (let i = 0, l = contacts.length; i < l; i++) {
                    console.log(`FullName: ${contacts[i].getAttributeValue("fullname")}`);