<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\IdentityGovernance\PrivilegedAccess\Group\AssignmentSchedules\AssignmentSchedulesRequestBuilderGetRequestConfiguration;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestConfiguration = new AssignmentSchedulesRequestBuilderGetRequestConfiguration();
$queryParameters = AssignmentSchedulesRequestBuilderGetRequestConfiguration::createQueryParameters();
$queryParameters->filter = "groupId eq '2b5ed229-4072-478d-9504-a047ebd4b07d' and principalId eq '3cce9d87-3986-4f19-8335-7ed075408ca2'";
$requestConfiguration->queryParameters = $queryParameters;
$result = $graphServiceClient->identityGovernance()->privilegedAccess()->group()->assignmentSchedules()->get($requestConfiguration)->wait();