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

p 

        # OpenSSL::PKey::RSA.p

(from ruby core)
### Implementation from Kernel
---
    p(obj)              -> obj
    p(obj1, obj2, ...)  -> [obj, ...]
    p()                 -> nil

---

For each object, directly writes *obj*.`inspect` followed by a newline
to the program's standard output.

    S = Struct.new(:name, :state)
    s = S['dave', 'TX']
    p s

*produces:*

    #<S name="dave", state="TX">

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.