modules_for_helpers

# File actionpack/lib/abstract_controller/helpers.rb, line 144
      def modules_for_helpers(args)
        args.flatten.map! do |arg|
          case arg
          when String, Symbol
            file_name = "#{arg.to_s.underscore}_helper"
            require_dependency(file_name, "Missing helper file helpers/%s.rb")
            file_name.camelize.constantize
          when Module
            arg
          else
            raise ArgumentError, "helper must be a String, Symbol, or Module"
          end
        end
      end