withSelect Option under DTOptionBuilder not working

I am struggling in implementing the code used in the following code.

http://l-lin.github.io/angular-datatables/archives/#!/withSelect

when I try to include following piece of code under my DTOptionBuilder I am getting an error **withSelect ** property saying that it is not an Option

.withSelect({
            style:    'os',
            selector: 'td:first-child'
        });

What I am trying to achieve is an angular datatable with checkboxes which enables user to select single or multiple rows by checking checkboxes

Thanks