Add some comments and type signatures.
authorMatthijs Kooijman <matthijs@stdin.nl>
Mon, 24 Aug 2009 19:20:23 +0000 (21:20 +0200)
committerMatthijs Kooijman <matthijs@stdin.nl>
Mon, 24 Aug 2009 19:20:23 +0000 (21:20 +0200)

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