new

# File actionpack/lib/action_dispatch/routing/mapper.rb, line 456
          def initialize(entities, options = {})
            @name       = entities.to_s
            @path       = (options.delete(:path) || @name).to_s
            @controller = (options.delete(:controller) || @name).to_s
            @as         = options.delete(:as)
            @options    = options
          end