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.
redshift_describe_event_categories(SourceType)
The source type, such as cluster or parameter group, to which the described event categories apply.
Valid values: cluster, cluster-snapshot, cluster-parameter-group, and cluster-security-group.
svc$describe_event_categories( SourceType = "string" )