Function xi

resources/vega-lite.min.js:1122–1124

(e)

    return `1D error band does not support ${e}.`;
  }
  function xi(e) {
    return `Channel ${e} is required for "binned" bin.`;
  }
  const $i = t.logger(t.Warn);
  let wi = $i;
  function ki() {