Portions of ETagCacheManager.py and PageCache.py were derived
from Zope 2.8's standard cache managers.  Specifically,
~Zope/lib/python/Products/StandardCacheManagers/RAMCacheManager.py
Both files have been modified considerably.

cache.gif also comes from ~Zope/lib/python/Products/StandardCacheManagers


Zope Public License (ZPL) Version 2.0
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