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diff --git a/vendor/symfony/dependency-injection/Config/ContainerParametersResource.php b/vendor/symfony/dependency-injection/Config/ContainerParametersResource.php
new file mode 100644
index 000000000..072f0580a
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+++ b/vendor/symfony/dependency-injection/Config/ContainerParametersResource.php
@@ -0,0 +1,64 @@
+<?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\DependencyInjection\Config;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+
+/**
+ * Tracks container parameters.
+ *
+ * @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
+ */
+class ContainerParametersResource implements ResourceInterface, \Serializable
+{
+    private $parameters;
+
+    /**
+     * @param array $parameters The container parameters to track
+     */
+    public function __construct(array $parameters)
+    {
+        $this->parameters = $parameters;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __toString()
+    {
+        return 'container_parameters_'.md5(serialize($this->parameters));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function serialize()
+    {
+        return serialize($this->parameters);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function unserialize($serialized)
+    {
+        $this->parameters = unserialize($serialized);
+    }
+
+    /**
+     * @return array Tracked parameters
+     */
+    public function getParameters()
+    {
+        return $this->parameters;
+    }
+}