// Some setup
const urlParams = new URLSearchParams(window.location.search);
const targetOrigin = urlParams.get('smart_messaging_origin') || '*';                                     
const targetWindow = window.opener || window.parent;

const payload = { resourceType: "Basic" };                                                               

// Create a messenger object and call send with a callback
const messenger = new SmartMessenger(targetWindow, targetOrigin);

messenger.send('scratchpad.create', payload, (event) => {
  console.log(event);
  // ...
});