Use class in Artisan Command for Scheduling Tasks - Laravel

Trying to use a class file to send e-mails automatically with Task Scheduler. But my command wont use Class files.

use Apps\Classes\Mail;


public function fire()
    {
        $this->info('Sending E-mail snow..');

        Mail::test();

        $this->info('Done!');
    } 

via Chebli Mohamed