| 12345678910111213141516 | var toString = require('../lang/toString');    /**     * Unescape unicode char sequences     */    function unescapeUnicode(str){        str = toString(str);        return str.replace(/\\u[0-9a-f]{4}/g, function(ch){            var code = parseInt(ch.slice(2), 16);            return String.fromCharCode(code);        });    }    module.exports = unescapeUnicode;
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