Lists descriptions of all the Amazon Redshift event notifications subscription
            for a  customer account.            If you specify a subscription name, lists the
            description for that subscription.
            
 Declaration Syntax
 Declaration Syntax| C# | 
DescribeEventSubscriptionsResponse DescribeEventSubscriptions()
 Return Value
 Return ValueThe response from the DescribeEventSubscriptions service method, as returned by Redshift.
 Exceptions
 Exceptions| Exception | Condition | 
|---|---|
| SubscriptionNotFoundException | An Amazon Redshift event notification subscription with the specified name does not
            exist. |