Files
heat/contrib
liu-sheng 5541f43903 Use None instead of mutables in method params defaults
Mutables in the method params defaults might cause errors and
that's why it's anti-pattern in most of the cases and should be
removed.

Change-Id: I8bc284f12ce72082a0482410ec2c20c2fc087a4b
Closes-Bug: #1327473
2014-07-02 16:33:12 +08:00
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