weeshop-8.x-1.0-beta6/modules/weeshop_features/weeshop_service/weeshop_service.module

<?php

/**
 * @file
 * module file.
 */

/**
 * Implements hook_theme().
 */
function weeshop_service_theme() {
  return [
    'weeshop_service_banner_block' => [
      'variables' => [
        'services' => []
      ],
      'render element' => 'children',
    ],
  ];
}