how to thunkify the mongodb native

gistfile1.js

// npm install mongodb thunkify-wrap co
var mongo = require('mongodb');
var t = require('thunkify-wrap');
var co = require('co');

co(function*(){
    var db = yield t(mongo.MongoClient.connect)('mongodb://127.0.0.1:27017/test');
    var items = db.collection('items');

    // cleanup
    yield t(items.remove, items)();

    // insert some records
    var record1 = yield t(items.insert, items)({lorem: "ipsum"});
    var record2 = yield t(items.insert, items)({lorem: "dolor"});
    var record3 = yield t(items.insert, items)({lorem: "sit amet"});

    // read it
    var count = yield t(items.count, items)();
    var records = yield t(items.find().toArray, items)();
    console.log(count, records);

    db.close();
})();

Thank you very much. Monk.js is very very old. And mongoose is shemalike.