/**
* Sets the URL handler for a particular extender type and name.
* It is recommended that you do not call this directly, instead use
- * one of the wrapper functions in the subtype files.
+ * one of the wrapper functions such as elgg_register_annotation_url_handler().
*
* @param string $function_name The function to register
- * @param string $extender_type Extender type
+ * @param string $extender_type Extender type ('annotation', 'metadata')
* @param string $extender_name The name of the extender
*
- * @return true|false Depending on success
+ * @return bool
*/
function elgg_register_extender_url_handler($extender_type, $extender_name, $function_name) {