flga-8.x-1.x-dev/face_login_gauth.module

<?php

/**
 * @file
 * Contains face_login_gauth.module.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function face_login_gauth_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the face_login_gauth module.
    case 'help.page.face_login_gauth':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Face Login GAuth Drupal 8') . '</p>';
      return $output;

    default:
  }
}

/**
 * Implements hook_theme().
 */
function face_login_gauth_theme($existing, $type, $theme, $path) {
  return [
    'qr_code' => [
      'variables' => ['qr_code' => NULL],
    ],
  ];
}