public virtual DescribeProblemObservationsResponse DescribeProblemObservations(DescribeProblemObservationsRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeProblemObservationsRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeProblemObservationsResponseUnmarshaller.Instance;return Invoke<DescribeProblemObservationsResponse>(request, options);}