diff -r 000000000000 -r 7f95f8617b0b vendor/assetic/src/Assetic/Cache/CacheInterface.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/assetic/src/Assetic/Cache/CacheInterface.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,53 @@
+<?php
+
+/*
+ * This file is part of the Assetic package, an OpenSky project.
+ *
+ * (c) 2010-2011 OpenSky Project Inc
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Assetic\Cache;
+
+/**
+ * Interface for a cache backend.
+ *
+ * @author Kris Wallsmith <kris.wallsmith@gmail.com>
+ */
+interface CacheInterface
+{
+    /**
+     * Checks if the cache has a value for a key.
+     *
+     * @param string $key A unique key
+     *
+     * @return Boolean Whether the cache has a value for this key
+     */
+    function has($key);
+
+    /**
+     * Returns the value for a key.
+     *
+     * @param string $key A unique key
+     *
+     * @return string|null The value in the cache
+     */
+    function get($key);
+
+    /**
+     * Sets a value in the cache.
+     *
+     * @param string $key   A unique key
+     * @param string $value The value to cache
+     */
+    function set($key, $value);
+
+    /**
+     * Removes a value from the cache.
+     *
+     * @param string $key A unique key
+     */
+    function remove($key);
+}