Add expandAll/collapseAll or toggleAll details for master detail dataTable using Tomahawk

I wanted to expand/collapse all my extended-record values in the dataTable. Right now it works with "Hide/Show" for each re开发者_运维技巧cord in the t:dataTable

I see in the aPI there is are methods public void collapseAllDetails() public void expandAllDetails()

How can I use these methods with my t:dataTable