This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# OpenSSL::ASN1::ASN1Data.tag (from ruby core) --- An Integer representing the tag number of this ASN1Data. Never `nil`.
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.