old_contents: import Ember from 'ember';
  import performanceNow from 'ember-keen/utils/performance-now';
  
  const {
    Route,
    RSVP,
    run,
    get,
    inject
  } = Ember;
  
  export default Route.extend({
  
    keen: inject.service(),
  
    beforeModel() {
      get(this, 'keen').startPerformanceTrack('page-view');
    },
  
    model() {
      return new RSVP.Promise((resolve) => {
        run.later(this, resolve, 500);
      });
    }
  
  });
  
new_contents: import Ember from 'ember';
  
  const {
    Route,
    RSVP,
    run,
    get,
    inject
  } = Ember;
  
  export default Route.extend({
  
    keen: inject.service(),
  
    beforeModel() {
      get(this, 'keen').startPerformanceTrack('page-view');
    },
  
    model() {
      return new RSVP.Promise((resolve) => {
        run.later(this, resolve, 500);
      });
    }
  
  });
  
subject: Fix minor linting issue