# File lib/rudy/huxtable.rb, line 233
233:     def known_machine_group?
234:       raise NoConfig unless @@config
235:       return true if default_machine_group?
236:       raise NoMachinesConfig unless @@config.machines
237:       return false if !@@config && !@@global
238:       zon, env, rol = @@global.zone, @@global.environment, @@global.role
239:       conf = @@config.machines.find_deferred(@@global.region, zon, [env, rol])
240:       conf ||= @@config.machines.find_deferred(zon, [env, rol])
241:       !conf.nil?
242:     end