public function add($url, $description = NULL, array $events = array()){
        return $this->request('add', array(
            'url' => $url,
            'description' => $description,
            'events' => $events
        ));
    }
public function add($url, $description = NULL, array $events = array()){
        return $this->request('add', array(
            'url' => $url,
            'description' => $description,
            'events' => $events
        ));
    }
public function add ( $ url , $ description = NULL , array $ events = array ( ) ) { return $ this -> request ( 'add' , array ( 'url' => $ url , 'description' => $ description , 'events' => $ events ) ) ; }
Add a new webhook
@param string $url the URL to POST batches of events
@param string $description an optional description of the webhook
@param string[] $events an optional list of events that will be posted to the webhook
valid events: send, hard_bounce, soft_bounce, open, click, spam, unsub, reject
@return array
@link https://mandrillapp.com/api/docs/webhooks.JSON.html#method=add
Add a new webhook