How to use the react-joyride.default function in react-joyride

/*
 * Copyright 2017, GeoSolutions Sas.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree.
 */
const PropTypes = require('prop-types');
const React = require('react');
const Joyride = require('react-joyride').default;
const I18N = require('../I18N/I18N');
const assign = require('object-assign');
const {head} = require('lodash');

require('react-joyride/lib/react-joyride-compiled.css');
require('./style/tutorial.css');

const defaultIntroStyle = {
    backgroundColor: 'transparent',
    color: '#fff',
    mainColor: '#fff',
    textAlign: 'center',
    header: {
        padding: 5,
        fontFamily: 'Georgia, serif',
        fontSize: '2.8em'