This is a very basic implementation of a cookie consent workflow that does not load any analytics by default then it allows you to accept cookies and load the analyctics or deny and nothing will load.
FG Cookie Consent has a set of customisable options each with a default:
cookieName
defaults totest-cookie
cookieHtmlMainMessage
defaults to<p>We use cookies to collect information about how you use this site.<br />We use this information to make the website work as well as possible and improve our services.<br /><a href="/privacy">Learn more about how we use cookies</a></p>
cookiesAcceptCookiesButtonText
defaults toAccept all cookies
cookiesRejectCookiesButtonText
defaults toDo not accept