$rev: Revision object
&$links: Array of HTML links
+'HTMLFileCache::useFileCache': Override whether a page should be cached in file
+cache.
+$context: An IContextSource object with information about the request being served.
+
'ImageBeforeProduceHTML': Called before producing the HTML created by a wiki
image insertion. You can skip the default logic entirely by returning false, or
just modify a few things using call-by-reference.