<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\Groups(uniqueName='{uniqueName}')\GroupsWithUniqueNameRequestBuilderPatchRequestConfiguration;
use Microsoft\Graph\Beta\Generated\Models\Group;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new Group();
$requestBody->setDescription('Self help community for golf');
$requestBody->setDisplayName('Golf Assist');
$requestBody->setGroupTypes(['Unified', ]);
$requestBody->setMailEnabled(true);
$requestBody->setMailNickname('golfassist');
$requestBody->setSecurityEnabled(false);
$requestConfiguration = new GroupsWithUniqueNameRequestBuilderPatchRequestConfiguration();
$headers = [
'Prefer' => 'create-if-missing',
];
$requestConfiguration->headers = $headers;
$result = $graphServiceClient->groupsWithUniqueName('{uniqueName}', )->patch($requestBody, $requestConfiguration)->wait();