Ruby 如何将对象/嵌套哈希打印/转换为字符串/json？

如果我打印FlickRaw lib，它将返回一个对象，应用.to_散列方法后，该对象将转换为散列，我可以使用puts打印该散列：

 {"id":"9490885638","secret":"4c05132e6a","server":"7293","farm":8,"dateuploaded":"1376261143",
"isfavorite":0,"license":"0","safety_level":"0","rotation":0,
"owner":"#<FlickRaw::Response:0x007fbe843a9ea0>",
"title":"stolen memories.","description":"Dresden, 2013.\nPlatz vor der Semperoper.",
"visibility":"#<FlickRaw::Response:0x007fbe843b1790>",
"dates":"#<FlickRaw::Response:0x007fbe843bb3a8>", ... }

那么，如果我打印返回值时没有看到一些散列，那么如何深入转换返回值以查看所有嵌套的值/结构呢

---

另外，这些对我不起作用[]

您是否尝试将其转换为Yaml？类似的行为：-！ruby/object:FlickRaw:：Response而不是