public override void Invoke(AWSCredentials creds, RegionEndpoint region, int maxItems)
        {
            AmazonDatabaseMigrationServiceConfig config = new AmazonDatabaseMigrationServiceConfig();

            config.RegionEndpoint = region;
            ConfigureClient(config);
            AmazonDatabaseMigrationServiceClient client = new AmazonDatabaseMigrationServiceClient(creds, config);

            DescribeReplicationTaskAssessmentResultsResponse resp = new DescribeReplicationTaskAssessmentResultsResponse();

            do
            {
                DescribeReplicationTaskAssessmentResultsRequest req = new DescribeReplicationTaskAssessmentResultsRequest
                {
                    Marker = resp.Marker
                    ,
                    MaxRecords = maxItems
                };

                resp = client.DescribeReplicationTaskAssessmentResults(req);
                CheckError(resp.HttpStatusCode, "200");

                foreach (var obj in resp.BucketName)
                {
                    AddObject(obj);
                }

                foreach (var obj in resp.ReplicationTaskAssessmentResults)
                {
                    AddObject(obj);
                }
            }while (!string.IsNullOrEmpty(resp.Marker));
        }
        /// <summary>
        /// Unmarshaller the response from the service to the response class.
        /// </summary>
        /// <param name="context"></param>
        /// <returns></returns>
        public override AmazonWebServiceResponse Unmarshall(JsonUnmarshallerContext context)
        {
            DescribeReplicationTaskAssessmentResultsResponse response = new DescribeReplicationTaskAssessmentResultsResponse();

            context.Read();
            int targetDepth = context.CurrentDepth;

            while (context.ReadAtDepth(targetDepth))
            {
                if (context.TestExpression("BucketName", targetDepth))
                {
                    var unmarshaller = StringUnmarshaller.Instance;
                    response.BucketName = unmarshaller.Unmarshall(context);
                    continue;
                }
                if (context.TestExpression("Marker", targetDepth))
                {
                    var unmarshaller = StringUnmarshaller.Instance;
                    response.Marker = unmarshaller.Unmarshall(context);
                    continue;
                }
                if (context.TestExpression("ReplicationTaskAssessmentResults", targetDepth))
                {
                    var unmarshaller = new ListUnmarshaller <ReplicationTaskAssessmentResult, ReplicationTaskAssessmentResultUnmarshaller>(ReplicationTaskAssessmentResultUnmarshaller.Instance);
                    response.ReplicationTaskAssessmentResults = unmarshaller.Unmarshall(context);
                    continue;
                }
            }

            return(response);
        }