Method constructor

resources/vega-lite.min.js:12881–12886

(e, t, n, i)

  }
  class pp extends Vm {
    constructor(e, t, n, i) {
      (super(e, "facet", t, n, i, e.resolve),
        (this.child = Up(e.spec, this, this.getName("child"), void 0, i)),
        (this.children = [this.child]),
        (this.facet = this.initFacet(e.facet)));
    }
    initFacet(e) {
      if (!Uo(e)) return { facet: this.initFacetFieldDef(e, "facet") };
      const t = D(e),