module Aio::Module class Platform attr_reader :platform end class RT < Platform def self.to_s; "route"; end end class SW < Platform def self.to_s; "switch"; end end class FW < Platform def self.to_s; "failwall"; end end class RS < Platform def self.to_s; "route & switch"; end end class RF < Platform def self.to_s; "route & failwall"; end end class ALL < Platform def self.to_s; "route & switch & failwall"; end end end