--- a/piecrust/data/base.py	Sun Nov 26 22:21:10 2017 -0800
+++ b/piecrust/data/base.py	Sun Nov 26 22:21:33 2017 -0800
@@ -1,3 +1,4 @@
+import time
 import collections.abc
 
 
@@ -5,10 +6,9 @@
     """ Provides a dictionary-like object that's really the aggregation of
         multiple dictionary-like objects.
     """
-    def __init__(self, dicts, path='', *, stats=None):
+    def __init__(self, dicts, path=''):
         self._dicts = dicts
         self._path = path
-        self._stats = stats
 
     def __getattr__(self, name):
         try: