Transliterator was dded
Tools
Transliterator
<?php
use GrapheneNodeClient\Tools\Transliterator;
//Encode tags
$tag = Transliterator::encode('пол', Transliterator::LANG_RU); // return 'pol';
//Decode tags
$tag = Transliterator::encode('ru--pol', Transliterator::LANG_RU); // return 'пол';