draw

# File actionpack/lib/action_dispatch/routing/route_set.rb, line 226
      def draw(&block)
        clear! unless @disable_clear_and_finalize

        mapper = Mapper.new(self)
        if block.arity == 1
          mapper.instance_exec(DeprecatedMapper.new(self), &block)
        else
          mapper.instance_exec(&block)
        end

        finalize! unless @disable_clear_and_finalize

        nil
      end