[4] pry(#<Post>):1> nesting
Nesting status:
--
0. main (Pry top level)
1. #<Post>
[5] pry(#<Post>):1> self.to_s
=> "#<Post:0x00000003e28738>"
[6] pry(#<Post>):1> self.title = 'some new title'
=> "some new title"
[7] pry(#<Post>):1> self.body = 'some new body'
=> "some new body"
[8] pry(#<Post>):1> self.changes
=> {"title"=>["Hbievtn prdl wfaur tngmuoav.", "some new title"],
 "body"=>
  ["Wbqgaezc kayd olhyin owseig. Xdsjaolt gsh ezrmpo pqnhor ljdmr xvyhl. Qawmkhn vhoxzya nojmr usw fgy qufbx dxmr. Cnagesok iljgyo hridv injz kzfwjc fdm. Gqld qvwiyrz kfeyvlc nhrqdp. Mxyznevc afrnope aoid oiafcly avmdwp.",
   "some new body"]}