commerce_multi_payment-8.x-1.x-dev/modules/multi_payment_example/commerce_multi_payment_example.module

<?php

/**
 * @file
 * Contains commerce_multi_payment_example.module.
 */

/**
 * Implements hook_theme().
 */
function commerce_multi_payment_example_theme() {
  return [
    'commerce_multi_payment_example_giftcard_form' => [
      'render element' => 'form',
    ],
    'commerce_multi_payment_example_storecredit_form' => [
      'render element' => 'form',
    ],
  ];
}