text: public virtual DescribeEngineDefaultClusterParametersResponse DescribeEngineDefaultClusterParameters(DescribeEngineDefaultClusterParametersRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeEngineDefaultClusterParametersRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeEngineDefaultClusterParametersResponseUnmarshaller.Instance;return Invoke<DescribeEngineDefaultClusterParametersResponse>(request, options);}