فرق

Route::get('/mailable', function () {
    $invoice = App\\Models\\Invoice::find(1);
 
    return new App\\Mail\\InvoicePaid($invoice);
});

و این

use App\\Mail\\InvoicePaid;
use App\\Models\\Invoice;
 
$invoice = Invoice::find(1);
 
return (new InvoicePaid($invoice))->render();

چیه ؟ این renderچیکار میکنه؟