irbとかでオブジェクトの中をのぞくのにrequire 'yaml'してy()メソッドとかいうのがあるらしい
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irbとかでオブジェクトの中をのぞくのにrequire 'yaml'してy()メソッドとかいうのがあるらしい
Last updated at Posted at 2012-12-26
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