Displays a list of event categories for all event source types, or for a         
             specified source type. For a list of the event categories and source types,     
                 go to Amazon
            Redshift Event Notifications.
            
 Declaration Syntax
 Declaration Syntax| C# | 
DescribeEventCategoriesResponse DescribeEventCategories()
 Return Value
 Return ValueThe response from the DescribeEventCategories service method, as returned by Redshift.