This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Pathname.rmtree (from ruby core) --- rmtree() --- Recursively deletes a directory, including all directories beneath it. See FileUtils.rm_r
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.