documentation/module-webapi-async_2registration_8php_source.html

 <?php
 declare(strict_types=1);

 \Magento\Framework\Component\ComponentRegistrar::register(
     \Magento\Framework\Component\ComponentRegistrar::MODULE,
     'Magento_WebapiAsync',
     __DIR__
 );
__DIR__
defined('TESTS_BP')||define('TESTS_BP' __DIR__
Definition: _bootstrap.php:60

Magento\Framework\Component\ComponentRegistrar\register
static register($type, $componentName, $path)
Definition: ComponentRegistrar.php:46

Magento