code: public void setEventCategoryGroupList(java.util.Collection<EventCategoryGroup> eventCategoryGroupList) {
          if (eventCategoryGroupList == null) {
              this.eventCategoryGroupList = null;
              return;
          }
  
          this.eventCategoryGroupList = new java.util.ArrayList<EventCategoryGroup>(eventCategoryGroupList);
      }
docs: <p>
  A list of event categories.
  </p>
  
  @param eventCategoryGroupList
  A list of event categories.