tutorial-9
```js
Playground.conductor.cards['../cards/tutorial/ad_card.js'][1][0].sandbox.videoPort.send('play');
// we add videoPort to window for convenience in the tutorial
window.videoPort.send('play');
```
```js
Playground.conductor.cards['../cards/tutorial/ad_card.js'][1][0].sandbox.videoPort.send('play');
// we add videoPort to window for convenience in the tutorial
window.videoPort.send('play');
```