How to use the terra-toolkit/lib/wdio/services/index.ExpressDevService function in terra-toolkit

/* eslint-disable import/no-extraneous-dependencies */
const wdioConf = require('terra-toolkit/lib/wdio/conf');
const ExpressDevService = require('terra-toolkit/lib/wdio/services/index').ExpressDevService;
const localIP = require('ip');
const path = require('path');
const webpackConfig = require('terra-dev-site/src/config/webpack.config.js');

const webpackPort = 8080;

// Flex specs search between local pacakge and repo
let specs = path.join('tests', 'wdio', '**', '*-spec.js');
if (__dirname === process.cwd()) {
  specs = path.join('packages', '*', specs);
}

const config = {
  ...wdioConf.config,

  baseUrl: `http://${localIP.address()}:${webpackPort}`,

/* eslint-disable import/no-extraneous-dependencies */
const wdioConf = require('terra-toolkit/lib/wdio/conf');
const webpackConfig = require('./webpack.config.js');
const ExpressDevService = require('terra-toolkit/lib/wdio/services/index').ExpressDevService;
const localIP = require('ip');
const path = require('path');

const webpackPort = 8080;
const isRepoTest = __dirname === process.cwd();

// Flex specs search between local pacakge and repo
let specs = path.join('tests', 'wdio', '**', '*-spec.js');
if (isRepoTest) {
  specs = path.join('packages', 'terra-*', specs);
}

const config = {
  ...wdioConf.config,
  baseUrl: `http://${localIP.address()}:${webpackPort}`,
  specs: [specs],