Initialise application for AWS Lambda

I think I have it:

<?php
require dirname(__DIR__) . '/config/requirements.php';
require dirname(__DIR__) . '/vendor/autoload.php';

use App\Application;
use Cake\Cache\Cache;
use Cake\Log\Log;


function lambdatest($data) {

    $app = new Application(dirname(__DIR__) . '/config');
    $app->bootstrap();
    $app->pluginBootstrap();

    Cache::disable();
    Log::drop("debug");
    Log::drop("error");
    Log::drop("sqllog");

    return \Cake\ORM\TableRegistry::getTableLocator()->get("Users")->find()->count();

}

I had to disable all loggers, because I get the same errors than with commands (Could not load class debug).