Initial Drupal 11 with DDEV setup

vendor/symfony/validator/Constraints/Luhn.php

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+<?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\Validator\Constraints;
+
+use Symfony\Component\Validator\Attribute\HasNamedArguments;
+use Symfony\Component\Validator\Constraint;
+
+/**
+ * Validates that a value (typically a credit card number) passes the Luhn algorithm.
+ *
+ * @see https://en.wikipedia.org/wiki/Luhn_algorithm
+ *
+ * @author Tim Nagel <t.nagel@infinite.net.au>
+ * @author Greg Knapp http://gregk.me/2011/php-implementation-of-bank-card-luhn-algorithm/
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+#[\Attribute(\Attribute::TARGET_PROPERTY | \Attribute::TARGET_METHOD | \Attribute::IS_REPEATABLE)]
+class Luhn extends Constraint
+{
+    public const INVALID_CHARACTERS_ERROR = 'dfad6d23-1b74-4374-929b-5cbb56fc0d9e';
+    public const CHECKSUM_FAILED_ERROR = '4d760774-3f50-4cd5-a6d5-b10a3299d8d3';
+
+    protected const ERROR_NAMES = [
+        self::INVALID_CHARACTERS_ERROR => 'INVALID_CHARACTERS_ERROR',
+        self::CHECKSUM_FAILED_ERROR => 'CHECKSUM_FAILED_ERROR',
+    ];
+
+    public string $message = 'Invalid card number.';
+
+    /**
+     * @param array<string,mixed>|null $options
+     * @param string[]|null            $groups
+     */
+    #[HasNamedArguments]
+    public function __construct(
+        ?array $options = null,
+        ?string $message = null,
+        ?array $groups = null,
+        mixed $payload = null,
+    ) {
+        if (\is_array($options)) {
+            trigger_deprecation('symfony/validator', '7.3', 'Passing an array of options to configure the "%s" constraint is deprecated, use named arguments instead.', static::class);
+        }
+
+        parent::__construct($options, $groups, $payload);
+
+        $this->message = $message ?? $this->message;
+    }
+}