text: public virtual DescribeClusterDbRevisionsResponse DescribeClusterDbRevisions(DescribeClusterDbRevisionsRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeClusterDbRevisionsRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeClusterDbRevisionsResponseUnmarshaller.Instance;return Invoke<DescribeClusterDbRevisionsResponse>(request, options);}