docs: function (bookmark, paras) {
                  var so = bookmark.s.offset;
                  var eo = bookmark.e.offset;
                  var sc = dom.fromOffsetPath(list.head(paras), bookmark.s.path);
                  var ec = dom.fromOffsetPath(list.last(paras), bookmark.e.path);
  
                  return new WrappedRange(sc, so, ec, eo);
              }