I have an action routed that returns a non-entity collection.

```
ActionConfiguration previewInvoices = this.EntityType.Collection.Action("PreviewInvoices");
previewInvoices.ReturnsCollection<InvoicePreviewComponent>();

```

Now when I query to get the results, I am using a `$take=20` to control paging through javascript. However it doesn't return a count as it does with entity sets with `$inlinecount=allpages`.

One solution I had been doing was to change the lines to:

```
ActionConfiguration previewInvoices = this.EntityType.Collection.Action("PreviewInvoices");
previewInvoices.ReturnsCollectionFromCollection<InvoicePreviewComponent>("InvoicePreviewComponent");

```

However this generates ghost entity sets in the `$metadata`, which I am using to generate the javascript models and requests. Not ideal, and ultimately not correct to annotate this as an entity set.

How can I modify the response JSON formatter to give the count as requested?