如何在节点js中使用sequalize.literal IF语句

const Sequelize = require('sequelize');

const sequelize = new Sequelize('database', 'username', 'password', {
  host: 'localhost',
  dialect: 'mysql',
});

const User = sequelize.define('user', {
  name: Sequelize.STRING,
  age: Sequelize.INTEGER,
});

User.findAll({
  attributes: [
    'name',
    [Sequelize.literal('IF(age > 18, "成年人", "未成年人")'), 'ageGroup'],
  ],
})
  .then((users) => {
    console.log(users);
  })
  .catch((error) => {
    console.error(error);
  });