update_helper-2.0.0/templates/configuration_update_hook.php.twig

{% block file_methods %}
{% if not file_exists %}
<?php

/**
 * @file
 * Install, update and uninstall module functions.
 */

{% endif -%}

/**
 * {{ description }}
 */
function {{ update_hook_name }}(): string {
  /** @var \Drupal\update_helper\Updater $updater */
  $updater = \Drupal::service('update_helper.updater');

  // Execute configuration update definitions with logging of success.
  $updater->executeUpdate('{{ module }}', '{{ update_hook_name }}');

  // Output logged messages to related channel of update execution.
  return $updater->logger()->output();
}
{% endblock %}