# File lib/mcollective/rpc/helpers.rb, line 255
      def self.add_simplerpc_options(parser, options)
        parser.separator ""
        parser.separator "RPC Options"

        # add SimpleRPC specific options to all clients that use our library
        parser.on('--np', '--no-progress', 'Do not show the progress bar') do |v|
          options[:progress_bar] = false
        end

        parser.on('--one', '-1', 'Send request to only one discovered nodes') do |v|
          options[:mcollective_limit_targets] = 1
        end
    
        parser.on('--batch SIZE', 'Do requests in batches') do |v|
          # validate batch string. Is it x% where x > 0 or is it an integer
          if ((v =~ /^(\d+)%$/ && Integer($1) != 0) || v =~ /^(\d+)$/)
            options[:batch_size] = v
          else
            raise(::OptionParser::InvalidArgument.new(v))
          end
        end

        parser.on('--batch-sleep SECONDS', Float, 'Sleep time between batches') do |v|
          options[:batch_sleep_time] = v
        end

        parser.on('--limit-seed NUMBER', Integer, 'Seed value for deterministic random batching') do |v|
          options[:limit_seed] = v
        end

        parser.on('--limit-nodes COUNT', '--ln', '--limit', 'Send request to only a subset of nodes, can be a percentage') do |v|
          raise "Invalid limit specified: #{v} valid limits are /^\d+%*$/" unless v =~ /^\d+%*$/

          if v =~ /^\d+$/
            options[:mcollective_limit_targets] = v.to_i
          else
            options[:mcollective_limit_targets] = v
          end
        end

        parser.on('--json', '-j', 'Produce JSON output') do |v|
          options[:progress_bar] = false
          options[:output_format] = :json
        end

        parser.on('--display MODE', 'Influence how results are displayed. One of ok, all or failed') do |v|
          if v == "all"
            options[:force_display_mode] = :always
          else
            options[:force_display_mode] = v.intern
          end

          raise "--display has to be one of 'ok', 'all' or 'failed'" unless [:ok, :failed, :always].include?(options[:force_display_mode])
        end
      end