docs: function parse_BrtBeginComment(data, length) {
  	var out = {};
  	out.iauthor = data.read_shift(4);
  	var rfx = parse_UncheckedRfX(data, 16);
  	out.rfx = rfx.s;
  	out.ref = encode_cell(rfx.s);
  	data.l += 16; /*var guid = parse_GUID(data); */
  	return out;
  }