如何在sequelize中使用事务？

const Sequelize = require('sequelize');
const { Model, DataTypes } = Sequelize;

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

class User extends Model {}
User.init({
  username: DataTypes.STRING,
  email: DataTypes.STRING,
}, { sequelize, modelName: 'user' });

sequelize.transaction(async (transaction) => {
  try {
    // 在事务中执行数据库操作
    const user = await User.create({ username: 'john', email: 'john@example.com' }, { transaction });
    // 执行其他数据库操作...

    // 提交事务
    await transaction.commit();
  } catch (error) {
    // 如果发生错误，回滚事务
    await transaction.rollback();
  }
});