code: public PostRemove<EntityListener<T>> getOrCreatePostRemove()
     {
        Node node = childNode.getOrCreate("post-remove");
        PostRemove<EntityListener<T>> postRemove = new PostRemoveImpl<EntityListener<T>>(this, "post-remove", childNode, node);
        return postRemove;
     }
docs: If not already created, a new <code>post-remove</code> element with the given value will be created.
  Otherwise, the existing <code>post-remove</code> element will be returned.
  @return  a new or existing instance of <code>PostRemove<EntityListener<T>></code>