text: public virtual DescribeDBClusterParameterGroupsResponse DescribeDBClusterParameterGroups(DescribeDBClusterParameterGroupsRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeDBClusterParameterGroupsRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeDBClusterParameterGroupsResponseUnmarshaller.Instance;return Invoke<DescribeDBClusterParameterGroupsResponse>(request, options);}