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EncodingHelperInterface.php	Edit
FromUtf8.php	Edit
ToUtf8.php	Edit

Editing: EncodingHelperInterface.php

<?php namespace Algo26\IdnaConvert\EncodingHelper; interface EncodingHelperInterface { public function convert( string $sourceString, string $encoding = 'ISO-8859-1', bool $safeMode = false ); }