# File lib/chef/expander/node.rb, line 67
      def attach_to_queue(queue, colloquial_name, &message_handler)
        queue.subscribe(:ack => true) do |headers, payload|
          log.debug { "received message on #{colloquial_name} queue: #{payload}" }
          message_handler.call(payload)
          headers.ack
        end
      end