text: public virtual DescribeNatGatewaysResponse DescribeNatGateways(DescribeNatGatewaysRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeNatGatewaysRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeNatGatewaysResponseUnmarshaller.Instance;return Invoke<DescribeNatGatewaysResponse>(request, options);}