demo/amd/rjs/output/unified/marionette-build.js
function(hash) {
      var uiBindings = _.result(this, '_uiBindings');
      return Marionette.normalizeUIKeys(hash, uiBindings || _.result(this, 'ui'));
    }
function(hash) {
      var uiBindings = _.result(this, '_uiBindings');
      return Marionette.normalizeUIKeys(hash, uiBindings || _.result(this, 'ui'));
    }
normalize the keys of passed hash with the views `ui` selectors. `{"@ui.foo": "bar"}`