# File lib/grape/dsl/parameters.rb, line 58
      def use(*names)
        named_params = @api.namespace_stackable_with_hash(:named_params) || {}
        options = names.extract_options!
        names.each do |name|
          params_block = named_params.fetch(name) do
            raise "Params :#{name} not found!"
          end
          instance_exec(options, &params_block)
        end
      end