<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\Drives\Item\Items\Item\Workbook\Names\Item\Range\Insert\InsertPostRequestBody;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new InsertPostRequestBody();
$requestBody->setShift('Down');
$result = $graphServiceClient->drives()->byDriveId('drive-id')->items()->byDriveItemId('driveItem-id')->workbook()->names()->byWorkbookNamedItemId('workbookNamedItem-id')->range()->insert()->post($requestBody)->wait();