This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Module.protected_instance_methods (from ruby core) --- mod.protected_instance_methods(include_super=true) -> array --- Returns a list of the protected instance methods defined in *mod*. If the optional parameter is `false`, the methods of any ancestors are not included.
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.