import PropTypes from 'prop-types' import React from 'react' import { Helmet } from 'react-helmet' const Twitter = ({ type, username, title, desc, image }) => ( {username && } ) export default Twitter Twitter.propTypes = { type: PropTypes.string, username: PropTypes.string, title: PropTypes.string.isRequired, desc: PropTypes.string.isRequired, image: PropTypes.string.isRequired, } Twitter.defaultProps = { type: 'summary_large_image', username: null, }