@Override
    public DescribeSpotDatafeedSubscriptionResult describeSpotDatafeedSubscription() {
        return describeSpotDatafeedSubscription(new DescribeSpotDatafeedSubscriptionRequest());
    }
<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</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>
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/AmazonEC2Client.java