window.addEventListener("message", receiveMessage);
function receiveMessage(e) {
if (typeof e.data !== 'string') return;
if (e.data.search('cliniko-bookings-page:confirmed') > -1) {
var dataLayer = window.dataLayer || (window.dataLayer = []);
dataLayer.push({
'event': 'clinikoBookingCompleted'
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}
