Docs for Ionic annotations

I see Ionic2 is introducing new annotations like @Page and @App.
Is there any documentation on how to use them?

Seems @Page is placing @Component but it doesn’t take providers

@App as ng-app

@page as Views:{ Templates…}

Thanks @Wall-E
From latest source code I see @Page has been changed to create Components also.
https://github.com/driftyco/ionic2/blob/master/ionic/config/decorators.ts