public static void DescribeSearchIndex(OTSClient otsClient)
{
Console.WriteLine("\n Start Describe searchindex...");
DescribeSearchIndexRequest request = new DescribeSearchIndexRequest(TableName, IndexName);
DescribeSearchIndexResponse response = otsClient.DescribeSearchIndex(request);
string serializedObjectString = JsonConvert.SerializeObject(response);
Console.WriteLine(serializedObjectString);
}