io_utils.module

<?php

/**
 * Implements hook_theme().
 */
function io_utils_theme() {
  return [
    'io_utils_search_replace_form' => [
      'render element' => 'form',
      'template' => 'io-utils-search-replace-form',
    ],
  ];
}


/**
 * Implements hook_help()
 */
function io_utils_help($route_name, \Drupal\Core\Routing\RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.io_utils':
    case 'io_utils.help':
      return file_get_contents(__DIR__.'/help/search-replace-help.html');
  }
  return null;
}