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

  if (index == 0) {{
    wapp_str8_list_push_front(list, node);
    return;
  }} else if (index == list->node_count) {{
    wapp_str8_list_push_back(list, node);
    return;
  }}

  {T}Node *dst_node = wapp_str8_list_get(list, index);
  if (!dst_node) {{
    return;
  }}

  {T}List node_list = {Tlower}_node_to_list(node);

  list->total_size += node_list.total_size;
  list->node_count += node_list.node_count;

  {T}Node *prev = dst_node->prev;

  dst_node->prev = node_list.last;
  prev->next     = node_list.first;

  node_list.first->prev = prev;
  node_list.last->next  = dst_node;