code: public void setEventTypeCategories(java.util.Collection<String> eventTypeCategories) {
          if (eventTypeCategories == null) {
              this.eventTypeCategories = null;
              return;
          }
  
          this.eventTypeCategories = new java.util.ArrayList<String>(eventTypeCategories);
      }
docs: <p>
  A list of event type category codes (<code>issue</code>, <code>scheduledChange</code>, or
  <code>accountNotification</code>).
  </p>
  
  @param eventTypeCategories
  A list of event type category codes (<code>issue</code>, <code>scheduledChange</code>, or
  <code>accountNotification</code>).
  @see EventTypeCategory