egg-sequelize Multi Clients

egg-sequelize 怎样使用多个客户端，像egg-redis那样： config.redis = { clients: { foo: {
port: 6379,
host: '127.0.0.1',
password: 'auth', db: 0, }, bar: { port: 6379, host: '127.0.0.1', password: 'auth', db: 1, }, } }