Object

var canViewCallbacks = require("can-view-callbacks");
var stache = require("can-stache");

canViewCallbacks.attr("my-attr", function(el, attrData){
  attrData.scope.peek("value") //-> 123
  attrData.attributeName       //-> "my-attr"

});

stache("<div my-attr='value'/>")({
    value: 123
});