private function getDeviceUserList($deviceResponse) { if (array_key_exists('row', $deviceResponse->accessDeviceTable)) { $device = $deviceResponse->accessDeviceTable['row']['col']; $this->client->send(OCISchemaGroup::GroupAccessDeviceGetUserListRequest($device[0], $device[2], $device[3])); return $this->client->getResponse(); } return null; }