* application/vnd.php.serialized - for future use with the api and for extensions
* application/json - for future use with the api, and for use by extensions
* application/xml - for future use with the api, and for use by extensions
* application/vnd.php.serialized - for future use with the api and for extensions
* application/json - for future use with the api, and for use by extensions
* application/xml - for future use with the api, and for use by extensions