Function is

resources/vega-lite.min.js:3248–3262

(e, t)

    };
  }
  function is(e, t) {
    if (e?.aggregate) {
      const { aggregate: n, ...i } = e;
      return (
        n !== t &&
          Si(
            (function (e, t) {
              return `Continuous axis should not have customized aggregation function ${e}; ${t} already agregates the axis.`;
            })(n, t),
          ),
        i
      );
    }
    return e;
  }
  function rs(e, t) {
    const { mark: n, encoding: i } = e,
      { x: r, y: o } = i;