vendor/symfony/security-core/Exception/UserNotFoundException.php line 20
<?php/** This file is part of the Symfony package.** (c) Fabien Potencier <fabien@symfony.com>** For the full copyright and license information, please view the LICENSE* file that was distributed with this source code.*/namespace Symfony\Component\Security\Core\Exception;/*** UserNotFoundException is thrown if a User cannot be found for the given identifier.** @author Fabien Potencier <fabien@symfony.com>* @author Alexander <iam.asm89@gmail.com>*/class UserNotFoundException extends AuthenticationException{private ?string $identifier = null;public function getMessageKey(): string{return 'Username could not be found.';}/*** Get the user identifier (e.g. username or email address).*/public function getUserIdentifier(): ?string{return $this->identifier;}/*** Set the user identifier (e.g. username or email address).*/public function setUserIdentifier(string $identifier): void{$this->identifier = $identifier;}public function getMessageData(): array{return ['{{ username }}' => $this->identifier, '{{ user_identifier }}' => $this->identifier];}public function __serialize(): array{return [$this->identifier, parent::__serialize()];}public function __unserialize(array $data): void{[$this->identifier, $parentData] = $data;$parentData = \is_array($parentData) ? $parentData : unserialize($parentData);parent::__unserialize($parentData);}}