Flarum\Core\CoreServiceProvider::registerAvatarsFilesystem PHP Метод

    protected function registerAvatarsFilesystem()
    {
        $avatarsFilesystem = function (Container $app) {
            return $app->make('Illuminate\\Contracts\\Filesystem\\Factory')->disk('flarum-avatars')->getDriver();
        };
        $this->app->when('Flarum\\Core\\Command\\UploadAvatarHandler')->needs('League\\Flysystem\\FilesystemInterface')->give($avatarsFilesystem);
        $this->app->when('Flarum\\Core\\Command\\DeleteAvatarHandler')->needs('League\\Flysystem\\FilesystemInterface')->give($avatarsFilesystem);
        $this->app->when('Flarum\\Core\\Command\\RegisterUserHandler')->needs('League\\Flysystem\\FilesystemInterface')->give($avatarsFilesystem);
    }