Signal
ruby/spec describes 3 methods in core/signal, and Metorex implements 3 of them. The parameters are what Method#parameters answers under Metorex.
Signal.list: implemented, parameters[[:req, :args]]. Returns a list of signal names mapped to the corresponding underlying signal numbers. An example calling it.Signal.signame: implemented, parameters[[:req, :args]]. Convert signal number to signal name. An example calling it.Signal.trap: implemented, parameters[[:rest]]. Specifies the handling of signals. An example calling it.
The method summaries are the first sentences of Ruby's own documentation for each method, read from MRI 4.0.6's ri data. Ruby's documentation is distributed under Ruby's license.