discourse/app/assets/javascripts/admin/addon/controllers/admin-customize-form-templates-index.js

import Controller from "@ember/controller";
import { action } from "@ember/object";

export default class AdminCustomizeFormTemplatesIndex extends Controller {
  @action
  newTemplate() {
    this.transitionToRoute("adminCustomizeFormTemplates.new");
  }

  @action
  reload() {
    this.send("reloadModel");
  }
}