# File lib/action_controller/caching/fragments.rb, line 38
      def write_fragment(key, content, options = nil)
        return content unless cache_configured?

        key = fragment_cache_key(key)
        instrument_fragment_cache :write_fragment, key do
          content = content.html_safe.to_str if content.respond_to?(:html_safe)
          cache_store.write(key, content, options)
        end
        content
      end