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Name	Action
..
CaseFolding.php	Edit
CaseFoldingData.php	Edit
CaseFoldingDataInterface.php	Edit
NamePrep.php	Edit
NamePrepData2003.php	Edit
NamePrepData2008.php	Edit
NamePrepDataInterface.php	Edit
NamePrepInterface.php	Edit

Editing: NamePrepInterface.php

<?php namespace Algo26\IdnaConvert\NamePrep; interface NamePrepInterface { /** * @param array $inputArray * * @return array */ public function do(array $inputArray): array; }