Method makeFromTransform

resources/vega-lite.min.js:5663–5667

(e, t)

      return S(n) ? null : new Dc(e, n);
    }
    static makeFromTransform(e, t) {
      const { timeUnit: n, ...i } = { ...t },
        r = { ...i, timeUnit: Ii(n) };
      return new Dc(e, { [d(r)]: r });
    }
    merge(e) {
      this.timeUnits = { ...this.timeUnits };
      for (const t in e.timeUnits)