Where can I find shell service in Net:SSH?

It is described at http://net-ssh.rubyforge.org/ssh/v1/chapter-5.html#s3.

The problem is there is no methods "shell" anymore :(

p Net::SSH.start(host, user).shell # => NoMethodError: undefined method  
°∆shell°« for #<Net::SSH::Connection::Session:0x789538>


-- 
Jaroslaw Zabiello
http://blog.zabiello.com