autoban-8.x-1.x-dev/modules/autoban_ban/autoban_ban.module

<?php

/**
 * @file
 * Autoban ban provider - core ban.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function autoban_ban_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.autoban_ban':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Autoban Core ban module allows integrate Core ban module for IP ban using Autoban.') . '</p>';
      $output .= '<h3>' . t('Uses') . '</h3>';
      $output .= '<p>' . t('You may use Core Ban provider.
        This value may be selected for IP Ban provider field on Add/Edit ban forms.') . '</p>';
      return $output;
  }
}