This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Logger.warn (from ruby core) --- warn(progname = nil, &block) --- Log a `WARN` message. See #info for more information.
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.