System.Text.UTF32Encoding.GetString C# (CSharp) Method

        public override string GetString(byte[] bytes, int index, int count)
        {
            throw null;
        }

 public static string GetUtf32(string unicodeString)
 {
     var utf8 = new UTF32Encoding();
     byte[] encodeBytes = utf8.GetBytes(unicodeString);
     string decodedString = utf8.GetString(encodeBytes);
     return decodedString;
 }