/// <summary>
 /// Serialize Symbol Token value.
 /// </summary>
 ///
 /// <param name="writer">The Ion writer to be used for serialization.</param>
 /// <param name="item">The Symbol Token value to serialize.</param>
 public override void Serialize(IIonWriter writer, SymbolToken item)
 {
     writer.WriteSymbolToken(item);
 }
        public override void Serialize(IIonWriter writer, SymbolToken item)
        {
            var token = new SymbolToken(item.Text.ToUpper(), item.Sid);

            writer.WriteSymbolToken(token);
        }