The code below is not longer working since the last update:
Error: InsertBookmark. Exception: Object reference not set to an instance of an object..
$wordsApi()->insertBookmark(
new InsertBookmarkRe…...new BookmarkInsert([ "start_range" => new DocumentPosition([ "node"...0"]), "offset" => 0 ]), "end_range" => new DocumentPosition([ "node"...