pega.u.d.attachOnload(function(){

   
var options = {
  
  name: "Test" , 
  contextPage: "Data-Portal",
  event: "Dom"
    
}   
   
pega.api.ui.actions.runDataTransform(options);
   
   console.log("excuted");

});

I'm trying to use pega javascript api and  run this code but it always gives me  " can not read properties of undefined "