collect macros

controllers.application.js

import Ember from 'ember';
import { raw, collect } from 'ember-awesome-macros';

export default Ember.Controller.extend({
  attrs:{
 		studyGroup: 'ADME',
 		studyType: 'PKIV'
  },
  configQuery: collect('attrs.studyGroup', raw('config'), 'attrs.studyType' )
});

templates.application.hbs

<code>
configQuery: {{this.configQuery}}
</code>

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2",
"ember-awesome-macros": "latest"
  }
}