It looks like all the rDoc related to sessions is currently stored in `base.rb`. @fxn where should such methods be documented? As `Session` is `:nodoc` it looks like it's an implementation detail and not part of the public API. It's a bit sad that this way you won't be able to find the docs using the "Search" feature of api.rubyonrails.org:

![bildschirmfoto 2013-10-29 um 20 35 25](https://f.cloud.github.com/assets/5402/1431578/5ff3996c-40d1-11e3-8c80-83b7fb39b27e.png)