# File lib/puppet/external/event-loop/signal-system.rb, line 116
116:     def __maybe_initialize_signal_observer
117:         @observed_signals ||= Hash.new do |signals, object|
118:             signals[object] = Hash.new do |handlers, name|
119:                 handlers[name] = Array.new
120:             end
121:         end
122:     end