From 164a4e11fc0e0d4fb7cbf5d533cd464a73638e97 Mon Sep 17 00:00:00 2001
From: Matthew Tretter <matthew@exanimo.com>
Date: Sat, 11 Feb 2012 00:15:58 -0500
Subject: [PATCH] Some documentation

---
 imagekit/cachestate/__init__.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/imagekit/cachestate/__init__.py b/imagekit/cachestate/__init__.py
index 779e229..f5a01d8 100644
--- a/imagekit/cachestate/__init__.py
+++ b/imagekit/cachestate/__init__.py
@@ -3,6 +3,11 @@ from django.utils.importlib import import_module
 
 
 class PessimisticCacheStateBackend(object):
+    """
+    A very safe cache state backend. Guarantees that files will always be
+    available, but at the cost of hitting the storage backend.
+
+    """
 
     def is_invalid(self, file):
         if not getattr(file, '_file', None):