How to send a request through a proxy to yandex-translate (liba)?

Question

Node.js

For proxies I use the 'tunnel' package, the request looks like this where to put this agent with my proxy?

translate.translate('You can burn my house, steal my car, drink my liquor from an old fruitjar.', { to: 'ru' }, function(err, res) {
    console.log(res.text);
});