This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://greasyfork.org/scripts/380575-%D0%B1%D0%B8%D0%B1%D0%BB%D0%B8%D0%BE%D1%82%D0%B5%D0%BA%D0%B0-%D1%84%D1%83%D0%BD%D0%BA%D1%86%D0%B8%D0%B9/code/%D0%91%D0%B8%D0%B1%D0%BB%D0%B8%D0%BE%D1%82%D0%B5%D0%BA%D0%B0%20%D1%84%D1%83%D0%BD%D0%BA%D1%86%D0%B8%D0%B9.js?version=681219