discourse/app/assets/javascripts/wizard/initializers/load-helpers.js

import { registerHelpers } from "discourse-common/lib/helpers";

export default {
  name: "load-helpers",

  initialize(application) {
    Object.keys(requirejs.entries).forEach(entry => {
      if (/\/helpers\//.test(entry)) {
        requirejs(entry, null, null, true);
      }
    });
    registerHelpers(application);
  }
};