1. Go to this page and download the library: Download justbetter/magento2-sentry library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
justbetter / magento2-sentry example snippets
public function execute(\Magento\Framework\Event\Observer $observer)
{
$observer->getEvent()->getSentryEvent()->unsEvent();
}