node 的 orm模块 sequelize实现 MySQL的读写分离时 怎么获取只读的对象来 curd实现操作

development: { database: null, username: null, password: null, host: null, dialect: ‘mysql’, replication: { read: [{ database: ‘xxx_copy’, username: ‘root’, password: null, host: ‘127.0.0.1’, port: 3306, pool: {}, }], write: { database: ‘xxx’, username: ‘root’, password:null, host: ‘127.0.0.1’, port: 3306, pool: {}, } }, pool: { // 重写链接池 max: 20, idle: 30000 }, } // 连接池生成的实例拿的是 主数据库 write的模型对象 // read配置的数据库也连接成功 但是拿不到从数据库 read的实例啊