public function Master_Get_Count($masterId) {
        $ret = false;

        if (is_int($masterId) === true) {
            do {
                $ret = $this->_call_api('get', "{$this->_url}/masters/$masterId/countData", array());
                // Sleep for 15 seconds so we don't keep hammering the api
                sleep(15);
            }
            while (!$this->Status_Is_Completed($ret->status));
        }

        return $ret;
    }