@Override
    public DescribeEventSubscriptionsResult describeEventSubscriptions(DescribeEventSubscriptionsRequest request) {
        request = beforeClientExecution(request);
        return executeDescribeEventSubscriptions(request);
    }
<p>
Lists all the subscription descriptions for a customer account. The description for a subscription includes
<code>SubscriptionName</code>, <code>SNSTopicARN</code>, <code>CustomerID</code>, <code>SourceType</code>,
<code>SourceID</code>, <code>CreationTime</code>, and <code>Status</code>.
</p>
<p>
If you specify a <code>SubscriptionName</code>, lists the description for that subscription.
</p>

@param describeEventSubscriptionsRequest
@return Result of the DescribeEventSubscriptions operation returned by the service.
@throws SubscriptionNotFoundException
        The subscription name does not exist.
@sample AmazonRDS.DescribeEventSubscriptions
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/DescribeEventSubscriptions" target="_top">AWS
     API Documentation</a>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/AmazonRDSClient.java