text: public virtual DescribeNotificationConfigurationsResponse DescribeNotificationConfigurations(DescribeNotificationConfigurationsRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeNotificationConfigurationsRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeNotificationConfigurationsResponseUnmarshaller.Instance;return Invoke<DescribeNotificationConfigurationsResponse>(request, options);}