@Override
    public java.util.concurrent.Future<DescribeEventSubscriptionsResult> describeEventSubscriptionsAsync() {

        return describeEventSubscriptionsAsync(new DescribeEventSubscriptionsRequest());
    }
Simplified method form for invoking the DescribeEventSubscriptions operation.

@see #describeEventSubscriptionsAsync(DescribeEventSubscriptionsRequest)
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/AmazonRedshiftAsyncClient.java