https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Menu%21MenuTreeStorage.php/function/MenuTreeStorage%3A%3AmoveChildren/10
function MenuTreeStorage::moveChildren | Drupal API
functiondrupalapi
https://api.drupal.org/api/drupal/core%21modules%21book%21src%21BookManager.php/function/BookManager%3A%3AmoveChildren/8.9.x
function BookManager::moveChildren | Drupal API
functionbookmanagerdrupalapi