This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Rake::Task.locations (from gem rake-13.0.6) --- File/Line locations of each of the task definitions for this task (only valid if the task was defined with the detect location option set).
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.