Function event

resources/vega-embed.min.js:1824–1828

(e, t)

      return (e, t) => Me(n, r, t, e);
    },
    event(e, t) {
      const n = t.ast,
        r = e.functions;
      return (e) => Me(n, r, void 0, void 0, e);
    },
    handler(e, t) {
      const n = t.ast,
        r = e.functions;