code: function(app) {
      this._super(app);
  
      const vendorTree = this.treePaths.vendor;
  
      // Import the PubNub package and shim.
      app.import(`${vendorTree}/pubnub.js`);
      app.import(`${vendorTree}/shims/pubnub.js`, {
        exports: {
          PubNub: ['default']
        }
      });
    }
docs: Add the PubNub JavaScript package
  to the consuming application and
  expose the vendor shim enabling it
  to be imported as an es6 module.
  
  @method included
  
  @param {Object} app
  An EmberApp instance.