@Override
    public java.util.concurrent.Future<DescribeEventCategoriesResult> describeEventCategoriesAsync() {

        return describeEventCategoriesAsync(new DescribeEventCategoriesRequest());
    }
Simplified method form for invoking the DescribeEventCategories operation.

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