This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

inspect 

        # IO.inspect

(from ruby core)
---
    inspect -> string

---

Returns a string representation of `self`:

    f = File.open('t.txt')
    f.inspect # => "#<File:t.txt>"

This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.