if (!list || !node || !(node->item)) {{
    return;
  }}

  {ListType} node_list = {Tlower}_node_to_list(node);

  if (list->node_count == 0) {{
    *list = node_list;
    return;
  }}

  list->node_count += node_list.node_count;

  {NodeType} *last = list->last;
  if (last) {{
    last->next = node_list.first;
  }}

  list->last            = node_list.last;
  node_list.first->prev = last;