This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

in 

        DateTime.in not found, maybe you meant:

DateTime#infinite?
DateTime#inspect
DateTime#inspect_raw
DateTime#instance_eval
DateTime#instance_exec
DateTime#instance_of?
DateTime#instance_variable_defined?
DateTime#instance_variable_get
DateTime#instance_variable_set
DateTime#instance_variables

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.