code: function transformArcs(arcs, scale, translate) {
    for (let i = 0, ii = arcs.length; i < ii; ++i) {
      transformArc(arcs[i], scale, translate);
    }
  }
docs: Apply a linear transform to array of arcs.  The provided array of arcs is
  modified in place.
  
  @param {Array<Array<import("../coordinate.js").Coordinate>>} arcs Array of arcs.
  @param {Array<number>} scale Scale for each dimension.
  @param {Array<number>} translate Translation for each dimension.