code: public java.util.List<String> getEventCategoriesList() {
          if (eventCategoriesList == null) {
              eventCategoriesList = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return eventCategoriesList;
      }
docs: <p>
  The list of Amazon Redshift event categories specified in the event notification subscription.
  </p>
  <p>
  Values: Configuration, Management, Monitoring, Security
  </p>
  
  @return The list of Amazon Redshift event categories specified in the event notification subscription.</p>
  <p>
  Values: Configuration, Management, Monitoring, Security