public override void Invoke(AWSCredentials creds, RegionEndpoint region, int maxItems) { AmazonRoboMakerConfig config = new AmazonRoboMakerConfig(); config.RegionEndpoint = region; ConfigureClient(config); AmazonRoboMakerClient client = new AmazonRoboMakerClient(creds, config); ListWorldsResponse resp = new ListWorldsResponse(); do { ListWorldsRequest req = new ListWorldsRequest { NextToken = resp.NextToken , MaxResults = maxItems }; resp = client.ListWorlds(req); CheckError(resp.HttpStatusCode, "200"); foreach (var obj in resp.WorldSummaries) { AddObject(obj); } }while (!string.IsNullOrEmpty(resp.NextToken)); }