template.hbs

{{pass_manager.isPassing}}

tiny_mce.js

import PassManager from "../models/passmanager.";

export function initialize(container, application) {
  application.register('service:pass_manager', PassManager);
  application.inject('controller', 'pass_manager', 'service:pass_manager', { instantiate: false });
}

export default {
  name: 'passmanager',
  initialize: initialize
};