# File lib/ruport/controller.rb, line 391
    def required_option(*opts) 
      self.required_options ||= []
      opts.each do |opt|
        self.required_options << opt 

        o = opt
        unless instance_methods(false).include?(o.to_s)
          define_method(o) { options.send(o.to_s) }
        end
        opt = "#{opt}="
        define_method(opt) {|t| options.send(opt, t) }
      end
    end