CreateUserCommand for ezplatform 2.5 , help script if you delete unintentionally all users!!

CreateUserCommand.php

<?php

//execute the script with: php bin/console ezplatform:createuser

// SEE and adapt everything marked as !!!!!!IMPORTANT!!!!!!!!
// set all required field in "ezcontentclass_attribute" to 0 , only for user attributes

namespace AppBundle\Command;

use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class CreateUserCommand extends ContainerAwareCommand
{

    protected function configure()
    {
        $this->setName('ezplatform:createuser');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {

        $repository = $this->getContainer()->get('ezpublish.api.repository');
        $contentService = $repository->getContentService();
        $locationService = $repository->getLocationService();
        $contentTypeService = $repository->getContentTypeService();

        //!!!!!!!!!!!!!!!!!!IMPORTANT!!!!!!!!!!!!!
        $contentType = $contentTypeService->loadContentTypeByIdentifier('user');

        //default user contenttype identifier in ez is: user

        $userService = $repository->getUserService();

        $content = $repository->sudo(function ( $repository) use ($userService, $contentType ) {

            //user:tom
            //password:publish
            $userCreateStruct = $userService->newUserCreateStruct(
                'tom',
                '[email protected]',
                'publish',
                'eng-GB',
                $contentType
            );
            //!!!!!!!!!!!!!!!!!!IMPORTANT!!!!!!!!!!!!!
            $userGroup = $userService->loadUserGroup(12); //Adminstrator UserGroup contentId
            $content = $userService->createUser($userCreateStruct, array($userGroup));
            return $content;
        });


        $output->writeln("User created with ID:" . $content->getFieldValue('user_account')->contentId);

    }
}