***Output 4. Run > nesting again***
[4] pry(#<Post>):1> nesting
Nesting status:
--
0. main (Pry top level)
1. #<Post>
***Output 5. self.to_s***
=> "#<Post:0x000000036b6108>"
***Output 6. self.title = 'some new title'***
=> "some new title"
***Output 7 self.body = 'some new body'***
=> "some new body"
***Output 8 self.changes***
=> {"title"=>["First Post", "some new title"], "body"=>["This is the first post in our system", "some new body"]}