public function getMessages($inboxId = null, $search = null, $page = null, $lastId = null) { if ($inboxId === null) { $inboxId = $this->getDefaultInboxID(); } $request = ['inbox_id' => $inboxId]; if ($search !== null) { $request['search'] = $search; } if ($page !== null) { $request['page'] = $page; } if ($lastId !== null) { $request['last_id'] = $lastId; } return parent::getMessages($request); }