acquia_perz-4.0.0-rc1/modules/acquia_perz_push/tests/modules/acquia_perz_push_test/acquia_perz_push_test.module

<?php

/**
 * @file
 * Acquia Perz Push Test - module file..
 */

/**
 * Implements hook_theme().
 */
function acquia_perz_push_test_theme($existing, $type, $theme, $path): array {
  return [
    'block' => [
      'render element' => 'elements',
      'base hook' => 'block',
      'template' => 'block_custom_twig_template',
    ],
  ];
}