<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\Models\Alert;
use Microsoft\Graph\Beta\Generated\Models\AlertFeedback;
use Microsoft\Graph\Beta\Generated\Models\AlertStatus;
use Microsoft\Graph\Beta\Generated\Models\SecurityVendorInformation;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new Alert();
$requestBody->setAssignedTo('String');
$requestBody->setClosedDateTime(new \DateTime('String (timestamp)'));
$requestBody->setComments(['String', ]);
$requestBody->setFeedback(new AlertFeedback('alertFeedback'));
$requestBody->setStatus(new AlertStatus('alertStatus'));
$requestBody->setTags(['String', ]);
$vendorInformation = new SecurityVendorInformation();
$vendorInformation->setProvider('String');
$vendorInformation->setVendor('String');
$requestBody->setVendorInformation($vendorInformation);
$result = $graphServiceClient->security()->alerts()->byAlertId('alert-id')->patch($requestBody)->wait();