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

Gem::LoadError 

        # Gem::LoadError < LoadError

(from ruby core)
---
Raised when RubyGems is unable to load or activate a gem.  Contains the
name and version requirements of the gem that either conflicts with
already activated gems or that RubyGems is otherwise unable to activate.
---
# Instance methods:

    name
    requirement

# Attributes:

    attr_accessor name
    attr_accessor requirement

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.