Initial Drupal 11 with DDEV setup

vendor/symfony/serializer/Context/Normalizer/DateTimeNormalizerContextBuilder.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\Serializer\Context\Normalizer;
+
+use Symfony\Component\Serializer\Context\ContextBuilderInterface;
+use Symfony\Component\Serializer\Context\ContextBuilderTrait;
+use Symfony\Component\Serializer\Exception\InvalidArgumentException;
+use Symfony\Component\Serializer\Normalizer\DateTimeNormalizer;
+
+/**
+ * A helper providing autocompletion for available DateTimeNormalizer options.
+ *
+ * @author Mathias Arlaud <mathias.arlaud@gmail.com>
+ */
+final class DateTimeNormalizerContextBuilder implements ContextBuilderInterface
+{
+    use ContextBuilderTrait;
+
+    /**
+     * Configures the format of the date.
+     *
+     * @see https://secure.php.net/manual/en/datetime.format.php
+     */
+    public function withFormat(?string $format): static
+    {
+        return $this->with(DateTimeNormalizer::FORMAT_KEY, $format);
+    }
+
+    /**
+     * Configures the timezone of the date.
+     *
+     * It could be either a \DateTimeZone or a string
+     * that will be used to construct the \DateTimeZone
+     *
+     * @see https://secure.php.net/manual/en/class.datetimezone.php
+     *
+     * @throws InvalidArgumentException
+     */
+    public function withTimezone(\DateTimeZone|string|null $timezone): static
+    {
+        if (null === $timezone) {
+            return $this->with(DateTimeNormalizer::TIMEZONE_KEY, null);
+        }
+
+        if (\is_string($timezone)) {
+            try {
+                $timezone = new \DateTimeZone($timezone);
+            } catch (\Exception $e) {
+                throw new InvalidArgumentException(\sprintf('The "%s" timezone is invalid.', $timezone), previous: $e);
+            }
+        }
+
+        return $this->with(DateTimeNormalizer::TIMEZONE_KEY, $timezone);
+    }
+
+    /**
+     * @param 'int'|'float'|null $cast
+     */
+    public function withCast(?string $cast): static
+    {
+        return $this->with(DateTimeNormalizer::CAST_KEY, $cast);
+    }
+}