protected function moveManagedFiles($manager)
    {
        foreach ($manager->listContents('from://', true) as $file) {
            if ($file['type'] === 'file' && (! $manager->has('to://'.$file['path']) || $this->option('force'))) {
                $manager->put('to://'.$file['path'], $manager->read('from://'.$file['path']));
            }
        }
    }