code: public java.util.List<String> getEventCategories() {
          if (eventCategories == null) {
              eventCategories = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return eventCategories;
      }
docs: <p>
  Specifies the category for the event.
  </p>
  
  @return Specifies the category for the event.