[LARAVEL] How to send email with attachment from public storage

use Mail;

    Mail::send('layouts.email', ['mail_body'=>$mail_body], 

        function($message) use ($to,$from,$subject,$attachment) {

            $message->to($to, $from)->subject

            ($subject);

            $message->from('youremail@gmail.com','Admin');

            // get attachment from local storage

            $fil_url = 'pubblic/documents/attachment1.pdf';

            $message->attach(base_path('storage/app/'.$file_url));     

            // get attachment from asset folder

            $message->attach(asset('media/documents/attachment2.pdf'));                            

        }

    );