v1/vendor/chi-teck/drupal-code-generator/templates/hook/path_insert.twig

/**
 * Implements hook_path_insert().
 */
function {{ machine_name }}_path_insert($path) {
  \Drupal::database()->insert('mytable')
    ->fields([
      'alias' => $path['alias'],
      'pid' => $path['pid'],
    ])
    ->execute();
}