This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Gem::Specification.specification_version (from ruby core) --- The Gem::Specification version of this gemspec. Do not set this, it is set automatically when the gem is packaged.
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.