code: function (file, writeOptions) {
    writeOptions = writeOptions || {};
    function toBuffer(ab) {
      var buffer = new Buffer(ab.byteLength);
      var view = new Uint8Array(ab);
      for (var i = 0; i < buffer.length; ++i) {
        buffer[i] = view[i];
      }
      return buffer;
    }
    var buf = index$14.structure(file);
    return toBuffer(buf.buffer);
  }
docs: /* istanbul ignore next