public override AmazonWebServiceResponse Unmarshall(JsonUnmarshallerContext context)
{
SynthesizeSpeechResponse response = new SynthesizeSpeechResponse();
response.AudioStream = context.Stream;
if (context.ResponseData.IsHeaderPresent("Content-Type"))
response.ContentType = context.ResponseData.GetHeaderValue("Content-Type");
if (context.ResponseData.IsHeaderPresent("x-amzn-RequestCharacters"))
response.RequestCharacters = int.Parse(context.ResponseData.GetHeaderValue("x-amzn-RequestCharacters"), CultureInfo.InvariantCulture);
return response;
}