/// <summary>
        /// The <i>DescribeReplicationGroups</i> operation returns information about a particular
        /// replication group. If no identifier is specified, <i>DescribeReplicationGroups</i>
        /// returns information about all replication groups.
        /// </summary>
        /// <param name="request">Container for the necessary parameters to execute the DescribeReplicationGroups service method.</param>
        /// 
        /// <returns>The response from the DescribeReplicationGroups service method, as returned by ElastiCache.</returns>
        /// <exception cref="Amazon.ElastiCache.Model.InvalidParameterCombinationException">
        /// Two or more incompatible parameters were specified.
        /// </exception>
        /// <exception cref="Amazon.ElastiCache.Model.InvalidParameterValueException">
        /// The value for a parameter is invalid.
        /// </exception>
        /// <exception cref="Amazon.ElastiCache.Model.ReplicationGroupNotFoundException">
        /// The specified replication group does not exist.
        /// </exception>
        public DescribeReplicationGroupsResponse DescribeReplicationGroups(DescribeReplicationGroupsRequest request)
        {
            var marshaller = new DescribeReplicationGroupsRequestMarshaller();
            var unmarshaller = DescribeReplicationGroupsResponseUnmarshaller.Instance;

            return Invoke<DescribeReplicationGroupsRequest,DescribeReplicationGroupsResponse>(request, marshaller, unmarshaller);
        }
        /// <summary>
        /// Initiates the asynchronous execution of the DescribeReplicationGroups operation.
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the DescribeReplicationGroups operation.</param>
        /// <param name="cancellationToken">
        ///     A cancellation token that can be used by other objects or threads to receive notice of cancellation.
        /// </param>
        /// <returns>The task object representing the asynchronous operation.</returns>
        public Task<DescribeReplicationGroupsResponse> DescribeReplicationGroupsAsync(DescribeReplicationGroupsRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new DescribeReplicationGroupsRequestMarshaller();
            var unmarshaller = DescribeReplicationGroupsResponseUnmarshaller.Instance;

            return InvokeAsync<DescribeReplicationGroupsRequest,DescribeReplicationGroupsResponse>(request, marshaller, 
                unmarshaller, cancellationToken);
        }
        /// <summary>
        /// Initiates the asynchronous execution of the DescribeReplicationGroups operation.
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the DescribeReplicationGroups operation on AmazonElastiCacheClient.</param>
        /// <param name="callback">An AsyncCallback delegate that is invoked when the operation completes.</param>
        /// <param name="state">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
        ///          procedure using the AsyncState property.</param>
        /// 
        /// <returns>An IAsyncResult that can be used to poll or wait for results, or both; this value is also needed when invoking EndDescribeReplicationGroups
        ///         operation.</returns>
        public IAsyncResult BeginDescribeReplicationGroups(DescribeReplicationGroupsRequest request, AsyncCallback callback, object state)
        {
            var marshaller = new DescribeReplicationGroupsRequestMarshaller();
            var unmarshaller = DescribeReplicationGroupsResponseUnmarshaller.Instance;

            return BeginInvoke<DescribeReplicationGroupsRequest>(request, marshaller, unmarshaller,
                callback, state);
        }
        /// <summary>
        /// Initiates the asynchronous execution of the DescribeReplicationGroups operation.
        /// <seealso cref="Amazon.ElastiCache.IAmazonElastiCache.DescribeReplicationGroups"/>
        /// </summary>
        /// 
        /// <param name="request">Container for the necessary parameters to execute the DescribeReplicationGroups operation.</param>
        /// <param name="cancellationToken">
        ///     A cancellation token that can be used by other objects or threads to receive notice of cancellation.
        /// </param>
        /// <returns>The task object representing the asynchronous operation.</returns>
		public Task<DescribeReplicationGroupsResponse> DescribeReplicationGroupsAsync(DescribeReplicationGroupsRequest request, CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new DescribeReplicationGroupsRequestMarshaller();
            var unmarshaller = DescribeReplicationGroupsResponseUnmarshaller.GetInstance();
            return Invoke<IRequest, DescribeReplicationGroupsRequest, DescribeReplicationGroupsResponse>(request, marshaller, unmarshaller, signer, cancellationToken);
        }
 IAsyncResult invokeDescribeReplicationGroups(DescribeReplicationGroupsRequest describeReplicationGroupsRequest, AsyncCallback callback, object state, bool synchronized)
 {
     IRequest irequest = new DescribeReplicationGroupsRequestMarshaller().Marshall(describeReplicationGroupsRequest);
     var unmarshaller = DescribeReplicationGroupsResponseUnmarshaller.GetInstance();
     AsyncResult result = new AsyncResult(irequest, callback, state, synchronized, signer, unmarshaller);
     Invoke(result);
     return result;
 }
        public void DescribeReplicationGroupsMarshallTest()
        {
            var operation = service_model.FindOperation("DescribeReplicationGroups");

            var request = InstantiateClassGenerator.Execute<DescribeReplicationGroupsRequest>();
            var marshaller = new DescribeReplicationGroupsRequestMarshaller();
            var internalRequest = marshaller.Marshall(request);
            var validator = new AWSQueryValidator(internalRequest.Parameters, request, service_model, operation);
            validator.Validate();


            var payloadResponse = new XmlSampleGenerator(service_model, operation).Execute();
            var context = new XmlUnmarshallerContext(Utils.CreateStreamFromString(payloadResponse), false, null);
            var response = DescribeReplicationGroupsResponseUnmarshaller.Instance.Unmarshall(context)
                as DescribeReplicationGroupsResponse;   
            InstantiateClassGenerator.ValidateObjectFullyInstantiated(response);       
        }
        /// <summary>
        /// <para>The <i>DescribeReplicationGroups</i> operation returns information about a particular replication group. If no identifier is
        /// specified, <i>DescribeReplicationGroups</i> returns information about all replication groups.</para>
        /// </summary>
        /// 
        /// <param name="describeReplicationGroupsRequest">Container for the necessary parameters to execute the DescribeReplicationGroups service
        /// method on AmazonElastiCache.</param>
        /// 
        /// <returns>The response from the DescribeReplicationGroups service method, as returned by AmazonElastiCache.</returns>
        /// 
        /// <exception cref="T:Amazon.ElastiCache.Model.InvalidParameterValueException" />
        /// <exception cref="T:Amazon.ElastiCache.Model.ReplicationGroupNotFoundException" />
        /// <exception cref="T:Amazon.ElastiCache.Model.InvalidParameterCombinationException" />
        /// <param name="cancellationToken">
        ///     A cancellation token that can be used by other objects or threads to receive notice of cancellation.
        /// </param>
		public async Task<DescribeReplicationGroupsResponse> DescribeReplicationGroupsAsync(DescribeReplicationGroupsRequest describeReplicationGroupsRequest, CancellationToken cancellationToken = default(CancellationToken))
        {
            var marshaller = new DescribeReplicationGroupsRequestMarshaller();
            var unmarshaller = DescribeReplicationGroupsResponseUnmarshaller.GetInstance();
            var response = await Invoke<IRequest, DescribeReplicationGroupsRequest, DescribeReplicationGroupsResponse>(describeReplicationGroupsRequest, marshaller, unmarshaller, signer, cancellationToken)
                .ConfigureAwait(continueOnCapturedContext: false);
            return response;
        }