This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# OpenSSL::SSL::SSLContext.client_cert_cb (from ruby core) --- A callback invoked when a client certificate is requested by a server and no certificate has been set. The callback is invoked with a Session and must return an Array containing an OpenSSL::X509::Certificate and an OpenSSL::PKey. If any other value is returned the handshake is suspended.
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.