<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\Models\ConversationThread;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new ConversationThread();
$additionalData = [
'originalStartTimeZone' => 'originalStartTimeZone-value',
'originalEndTimeZone' => 'originalEndTimeZone-value',
'responseStatus' => [
'response' => '',
'time' => 'datetime-value',
],
'iCalUId' => 'iCalUId-value',
'reminderMinutesBeforeStart' => 99,
'isReminderOn' => true,
];
$requestBody->setAdditionalData($additionalData);
$result = $graphServiceClient->groups()->byGroupId('group-id')->threads()->byConversationThreadId('conversationThread-id')->patch($requestBody)->wait();