How to show tooltip in messagebox for ok and cancel buttons in angularjs. we are using the $dialog message box

[vsn]

I want to show the tooltip to the "Ok" and "Cancel" button of the  confirmation message box provided by angular bootstrap: https://github.com/thierryc/bootstrap-ui-angularjs/tree/master/src/dialog

 

I am using the below code:

 var msgbox = this.$dialog.messageBox( "confirmation box title", "confirmation box message"), [ { label: "OK", result: '1', cssClass: 'btn' }, { label: "Cancel", result: '0', cssClass: 'btn-primary' } ]); and for the label "OK" and label "Cancel". i need the tooltip basically the label is in the angular code and not in the html so i am not able to use ng-attr-tooltip attribute.