How to use the @babel/register.default function in @babel/register

const enzyme = require('enzyme');
const Adapter = require('enzyme-adapter-react-16');
const chai = require('chai');

require('@babel/register').default({
  plugins: [
    '@babel/plugin-transform-modules-commonjs',
    'module:babel-plugin-dynamic-import-node',
  ],
});
require('yaml-hook/register');

enzyme.configure({
  adapter: new Adapter(),
});

chai.use(require('chai-enzyme')());

// Mock an asset like Webpack's file-loader.
function mockAsset(modulePath) {
  const path = require.resolve(modulePath);

const LodashModuleReplacementPlugin = require('lodash-webpack-plugin');
const ExtractCssPlugin = require('mini-css-extract-plugin');
const HtmlPlugin = require('html-webpack-plugin');
const HtmlSiblingChunksPlugin = require('html-webpack-include-sibling-chunks-plugin');
const CopyPlugin = require('copy-webpack-plugin');
const { Plugin: ShakePlugin } = require('webpack-common-shake');
const merge = require('webpack-merge');
const htmlMinifierOptions = require('./tasks/utils/htmlMinifierOptions');

const nodeEnv = process.env.NODE_ENV || 'development';
const isDemo = process.env.DEMO === '1';

const outputPackage = isDemo ? __dirname : path.join(__dirname, 'packages/u-wave-web-middleware');

// Compile src/ on the fly so we can use components etc. during build time.
require('@babel/register').default({
  only: [
    new RegExp(escapeStringRegExp(path.join(__dirname, 'src'))),
    new RegExp(escapeStringRegExp(path.join(__dirname, 'tasks/webpack'))),
  ],
  plugins: [
    ['@babel/plugin-transform-modules-commonjs', { lazy: true }],
  ],
});

// Most webpack configuration is in this file. A few things are split up to make the
// core stuff easier to grasp.
//
// Other parts of the build are in the ./tasks/webpack/ folder:
//  - compileDependencies: Compiles dependencies that only ship ES2015+ to code that
//    works in all our browser targets.
const compileDependencies = require('./tasks/webpack/compileDependencies').default;