nl_tokens: Creates the view - stack layout .
pl_tokens: function _createLayout ( ) { this . _renderables = { views : [ ] , transferables : [ ] } ; this . _viewStack = [ ] ; this . layout = new LayoutController ( { layout : ViewStackLayout . <mask> ( this ) , layoutOptions : this . options , dataSource : this . _renderables } ) ; this . add ( this . layout ) ; this . layout . on ( 'layoutend' , _processAnimations . bind ( this ) ) ; }