text: public virtual DescribeReservedNodesResponse DescribeReservedNodes(DescribeReservedNodesRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeReservedNodesRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeReservedNodesResponseUnmarshaller.Instance;return Invoke<DescribeReservedNodesResponse>(request, options);}