# File data/examples/ruby/Borges/ObjectSpaceBrowser.rb, line 59
    def render_content_on(r)
      r.heading "Class #{@klass.name}"

      r.heading_level "Instances", 2

      unless instances.length.zero? then
        r.list_do(instances) do |instance|
          r.anchor("0x%x" % instance.object_id) do choose(instance) end
        end
      else
        r.text "No instances"
      end
    end