code: public function register()
      {
          $this->app->singleton('uploader', function ($app) {
              return new UploaderManager($app);
          });
  
          $this->app->alias('uploader', 'Rymanalu\LaravelSimpleUploader\Contracts\Factory');
  
          $this->app->singleton('uploader.from', function ($app) {
              return $app['uploader']->from();
          });
  
          $this->app->alias('uploader.from', 'Rymanalu\LaravelSimpleUploader\Contracts\Uploader');
      }
docs: Register the service provider.
  
  @return void