How to support API level caching with sequelize

[kom24al]

var SimpleCache = require('sequelize-simple-cache');
const getOrder = async (orderObj) => {
try {
var orderInfo = {};
var cachedData = false;
var cache = new SimpleCache(db.OrderInfo);

const orderId = orderObj.orderId;
if (cachedData) {
  console.log('Fetching order from cache', cache);
  return cache;
} else {
   orderInfo = await db.OrderInfo.findAll({
    where: {
      ORDER_ID: orderId,
    },
  });
  console.log('Fetching2 order from DB');
 cachedData = true;
 cache.set('OrderDtl', orderInfo); // This line is giving error
}
return orderInfo;

} catch (error) {
logger.error(error);
}
};

Cache object contains below structure:
SequelizeSimpleCache {
config: {
orderInfo: {
ttl: 3600,
methods: [Array],
methodsUpdate: [Array],
limit: 50,
clearOnUpdate: true
}
},
debug: false,
ops: 0,
delegate: [Function: delegate],
cache: {},
stats: { hit: 0, miss: 0, load: 0, purge: 0 }
}

How to set resultset into cache?