result.js

function content() {
    for (var $2 in books) {
        book = books[$2]
        $cache["books-view"].get(book.id, function (data) {
            if (data === null) {
                $0 = new Buffer()
                $1 = $res;
                $res = $0;
                $pull[books].get(book.id, function (book) {
                    $res.write("<h1>");
                    $res.write(book.title);
                    $res.write("</h1><p>");
                    $res.write(book.description);
                    $res.write("</p><h1>gm</h1>");
                });

                $res = $1;
                $res.write($0);
            } else {
                $res.write(data);
            }
        });

    }

}

source.riot

{{def content}}
	{{each book in books}}
		{{cache books-view book.id}}
			{{pull books book.id book}}
				<h1>{{book.title}}</h1>
				<p>{{book.description}}</p>
			{{/}}
		{{/}}
	{{/}}
{{/}}