export default function(id) {
  return [
    ['script', {async: true, src: `https://www.googletagmanager.com/gtag/js?id=${id}`}],
    ['script', {}, [
        'window.dataLayer = window.dataLayer || [];',
        'function gtag(){dataLayer.push(arguments);}',
        `gtag('js', new Date());`,
        `gtag('config', '${id}');`,
      ].join('\n'),
    ],
  ];
};