<% define_content :link do -%>
  <%= polymorphic_url([asset.context, :files]) %>
<% end -%>
<%= t('body', '%{count} new files added for %{name}.',
        :count => n(data.count),
        :name => asset.context.name) %>
<%= t('link', 'More info at %{link}', :link => content(:link)) %>