code: @Override
      public DescribeSpotDatafeedSubscriptionResult describeSpotDatafeedSubscription(DescribeSpotDatafeedSubscriptionRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeSpotDatafeedSubscription(request);
      }
docs: <p>
  Describes the data feed for Spot Instances. For more information, see <a
  href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-data-feeds.html">Spot Instance Data Feed</a> in
  the <i>Amazon EC2 User Guide for Linux Instances</i>.
  </p>
  
  @param describeSpotDatafeedSubscriptionRequest
  Contains the parameters for DescribeSpotDatafeedSubscription.
  @return Result of the DescribeSpotDatafeedSubscription operation returned by the service.
  @sample AmazonEC2.DescribeSpotDatafeedSubscription
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DescribeSpotDatafeedSubscription"
  target="_top">AWS API Documentation</a>