This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# OpenSSL::X509::Store.chain (from ruby core) --- The certificate chain constructed by the last call of #verify. See also StoreContext#chain.
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.