extern val seconds : interval;
extern val expiresByType : mime_type -> interval_base -> int -> interval -> [^Vhost];
-{{See <a href="http://httpd.apache.org/docs/2.0/mod/mod_expires.html#expiresbytype">
+{{See <a href="http://httpd.apache.org/docs/2.2/mod/mod_expires.html#expiresbytype">
Apache documentation</a>.}}