This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# NoMethodError.args (from ruby core) --- no_method_error.args -> obj --- Return the arguments passed in as the third parameter to the constructor.
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.