How can I set the cache-control header in hapi to 'no-cache', 'no-store', 'must-revalidate'? 

In express I am able to do the following:
`res.header('Cache-Control', 'no-cache, no-store, must-revalidate');`

I currently have the following in hapi but I think it may be incorrect:

```
function(request, reply){
  var response = reply();
  response.header('Cache-Control', 'no-cache');
  response.header('Cache-Control', 'no-store');
  response.header('Cache-Control', 'must-revalidate'
}

```

Is it possible to do this in hapi?

```
function(request, reply){
  var response = reply();
  response.header('Cache-Control', 'no-cache, no-store, must-revalidate');
}

```