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

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

            ListVirtualClustersResponse resp = new ListVirtualClustersResponse();

            do
            {
                ListVirtualClustersRequest req = new ListVirtualClustersRequest
                {
                    NextToken = resp.NextToken
                    ,
                    MaxResults = maxItems
                };

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

                foreach (var obj in resp.VirtualClusters)
                {
                    AddObject(obj);
                }
            }while (!string.IsNullOrEmpty(resp.NextToken));
        }
        /// <summary>
        /// Lists information about the specified virtual cluster. Virtual cluster is a managed
        /// entity on Amazon EMR on EKS. You can create, describe, list and delete virtual clusters.
        /// They do not consume any additional resource in your system. A single virtual cluster
        /// maps to a single Kubernetes namespace. Given this relationship, you can model virtual
        /// clusters the same way you model Kubernetes namespaces to meet your requirements.
        /// </summary>
        /// <param name="request">Container for the necessary parameters to execute the ListVirtualClusters service method.</param>
        /// <param name="cancellationToken">
        ///     A cancellation token that can be used by other objects or threads to receive notice of cancellation.
        /// </param>
        ///
        /// <returns>The response from the ListVirtualClusters service method, as returned by EMRContainers.</returns>
        /// <exception cref="Amazon.EMRContainers.Model.InternalServerException">
        /// This is an internal server exception.
        /// </exception>
        /// <exception cref="Amazon.EMRContainers.Model.ValidationException">
        /// There are invalid parameters in the client request.
        /// </exception>
        /// <seealso href="http://docs.aws.amazon.com/goto/WebAPI/emr-containers-2020-10-01/ListVirtualClusters">REST API Reference for ListVirtualClusters Operation</seealso>
        public virtual Task <ListVirtualClustersResponse> ListVirtualClustersAsync(ListVirtualClustersRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
        {
            var options = new InvokeOptions();

            options.RequestMarshaller    = ListVirtualClustersRequestMarshaller.Instance;
            options.ResponseUnmarshaller = ListVirtualClustersResponseUnmarshaller.Instance;

            return(InvokeAsync <ListVirtualClustersResponse>(request, options, cancellationToken));
        }
        internal virtual ListVirtualClustersResponse ListVirtualClusters(ListVirtualClustersRequest request)
        {
            var options = new InvokeOptions();

            options.RequestMarshaller    = ListVirtualClustersRequestMarshaller.Instance;
            options.ResponseUnmarshaller = ListVirtualClustersResponseUnmarshaller.Instance;

            return(Invoke <ListVirtualClustersResponse>(request, options));
        }