writeMultiLineString(coords, layout) {
    this.writeUint32(coords.length); // numItems
    for (let i = 0; i < coords.length; i++) {
      this.writeWkbHeader(2);
      this.writeLineString(coords[i], layout);
    }
  }
@param {Array<Array<import('../coordinate.js').Coordinate>>} coords coords
@param {import("../geom/Geometry.js").GeometryLayout} layout layout