drupal/core/vendor/composer/autoload_files.php

<?php

// autoload_files.php @generated by Composer

$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);

return array(
    $vendorDir . '/guzzlehttp/promises/src/functions_include.php',
    $vendorDir . '/guzzlehttp/psr7/src/functions_include.php',
    $vendorDir . '/guzzlehttp/guzzle/src/functions_include.php',
    $baseDir . '/lib/Drupal.php',
);