text: public virtual DescribeInternetGatewaysResponse DescribeInternetGateways(DescribeInternetGatewaysRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeInternetGatewaysRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeInternetGatewaysResponseUnmarshaller.Instance;return Invoke<DescribeInternetGatewaysResponse>(request, options);}