function friends_in_common($uid, $suid = NULL, $page = 1, $count = 50)
{
$params = array();
$params['uid'] = $uid;
$params['suid'] = $suid;
$params['count'] = $count;
$params['page'] = $page;
return $this->oauth->get('friendships/friends/in_common', $params);
}