window.klarnaAsyncCallback = function () {
  window.Klarna.Payments.Buttons.init({
    client_id: "klarna_live_client_IXJjeENTKiEveC1Ed2R2cXooVEVBSjMtKXRrLVElWUssMGM1ZTc3ZDQtMDBjYy00Nzc5LWFiZTAtOWEwZDVkNDI1ZjAyLDEsMWc1VWZFR2xKSDRYTng4RDFQZFh4ZlhCYUsvakdKclhxNmt0ZE1SZzVYbz0",
  }).load(
    {
      container: "#container",
      theme: "default",
      shape: "default",
      on_click: (authorize) => {
        // Here you should invoke authorize with the order payload.
        authorize(
          { collect_shipping_address: true },
          payload, // order payload 
          (result) => {
            // The result, if successful contains the authorization_token
          },
        );
      },
    },
    function load_callback(loadResult) {
      // Here you can handle the result of loading the button
    },
  );
};