code: @Override
      public DescribeNatGatewaysResult describeNatGateways(DescribeNatGatewaysRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeNatGateways(request);
      }
docs: <p>
  Describes one or more of your NAT gateways.
  </p>
  
  @param describeNatGatewaysRequest
  @return Result of the DescribeNatGateways operation returned by the service.
  @sample AmazonEC2.DescribeNatGateways
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DescribeNatGateways" target="_top">AWS API
  Documentation</a>