Function dU

resources/vega.min.js:32497–32501

(t, e)

    );
  }
  function dU(t, e) {
    return e && e.signal
      ? { name: t, update: e.signal }
      : { name: t, value: e };
  }
  function pU(t, e) {
    ((this.config = t || {}),
      (this.options = e || {}),