return message and generate PDF Laravel

In laravel 5.6 I want to return 2 argument 1. message , 2. pdf .

Laravel Packege that i use for pdf is barryvdh/laravel-dompdf.
For message package is laracasts/flash.

        $data = $request;
        $pdf = PDF::loadView('admin.sample',compact('data'));
        $pdf->download('sample'); 

        $message = flash('Order Placed!!'); 

        return  response()->download($pdf);   

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