listing expose options

[jjhesk]

I have see the option show that does the magic to allow certain values to show at the api request. I have followed these examples but it doesnt get the showings limited on the listing.

restful.expose({
    Article : {
        show : "title content"
    }
});

and this

restful.expose({
    Article : {
        show : ["title", "author", "publishedDate", "content.brief"]
    }
});

is this possible do able to show at

restful.expose({
   Articles : {
        show : ["title", "author", "publishedDate", "content.brief"]
    }
});

so i can enable this feature on the listing request.