text: public virtual DescribeLaunchConfigurationsResponse DescribeLaunchConfigurations(DescribeLaunchConfigurationsRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeLaunchConfigurationsRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeLaunchConfigurationsResponseUnmarshaller.Instance;return Invoke<DescribeLaunchConfigurationsResponse>(request, options);}