Update Event on Zoho PhP SDK v2

Update Event on Zoho PhP SDK v2

Hi there,

I am using php sdk and configured it successfully. Getting Events on my screen, Now I want update Events through event ID, I am not able to get an method How Can I update events.

$entityId ="869559000039430002";
$apiResponse=ZCRMModule::getInstance('Events')->getRecord($entityId);
$record = $apiResponse->getData();
$update_data = array(

    'Notify Staff' => 'true'
        );
$response = $zoho_api->update_record($module, $record_id, (array($update_data)));

Please help me on this. 

Thanks!