This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Pathname.mkpath (from ruby core) --- mkpath(mode: nil) --- Creates a full path, including any intermediate directories that don't yet exist. See FileUtils.mkpath and FileUtils.mkdir_p
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.