How to get payment Link From SumUp using sumup-ecom-php-sdk?

$sumup = new \SumUp\SumUp([    'app_id' => '...',    'app_secret' => '...',    'grant_type' => 'client_credentials',]);$checkoutService = $sumup->getCheckoutService();$amount =$invoice->amount;$currency = $invoice->currency;$checkoutRef = $invoice->number;$payToEmail = $invoice->recipient;$description = $invoice->description;$checkoutResponse = $checkoutService->create($amount, $currency, $checkoutRef, $payToEmail, $description);$checkoutId = $checkoutResponse->getBody()->id;

$redirectUrl = 'http://127.0.0.1:8000/sumup/checkout?ref='.$checkoutRef.'&token='.$checkoutId

Route::get('/sumup/checkout', [SumupPayController::class, 'index']);

public function index(Request $request){    $invoiceNumber = $request->query('ref');    $checkoutId = $request->query('token');    return view('sumup_checkout', compact('invoiceNumber','checkoutId'));}

<script src="https://gateway.sumup.com/gateway/ecom/card/v2/sdk.js"></script>

@extends('layout.app_layout_client')@section('body')    <div id="sumup-card"></div>@endsection@push('post-body-script')    <script>        const checkoutId = @json($checkoutId);        const invoiceNumber = @json($invoiceNumber);        console.log(checkoutId, invoiceNumber);        var sumupCard = SumUpCard.mount({            checkoutId: checkoutId,            showFooter: true,            currency: "EUR",            locale: "de-DE",            onResponse: function (type, body) {                switch(type) {                    case "sent":                        break;                    case "invalid":                        break;                    case "auth-screen":                        break;                    case "error":                        break;                    case "success":                        break;                    default:                        break;                }            },        });    </script>@endpush