Function xz

resources/vega.min.js:29388–29398

(t, e)

      .background(t.background());
  }
  function xz(t, e) {
    return e
      ? function () {
          try {
            e.apply(this, arguments);
          } catch (e) {
            t.error(e);
          }
        }
      : null;
  }
  function bz(t, e, n) {
    if ("string" == typeof e) {
      if ("undefined" == typeof document)