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vendor/doctrine/cache/lib/Doctrine/Common/Cache/ClearableCache.php

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+<?php
+
+namespace Doctrine\Common\Cache;
+
+/**
+ * Interface for cache that can be flushed.
+ *
+ * Intended to be used for partial clearing of a cache namespace. For a more
+ * global "flushing", see {@see FlushableCache}.
+ *
+ * @link   www.doctrine-project.org
+ */
+interface ClearableCache
+{
+    /**
+     * Deletes all cache entries in the current cache namespace.
+     *
+     * @return bool TRUE if the cache entries were successfully deleted, FALSE otherwise.
+     */
+    public function deleteAll();
+}