/**
  * {@inheritDoc}
  */
 public function ls(Response $response, $target)
 {
     $files = array_filter(glob($target . '/*', GLOB_MARK), function ($val) {
         return substr($val, -1, 1) != DIRECTORY_SEPARATOR;
     });
     $files = array_map(function ($val) {
         return basename($val);
     }, $files);
     $response->setList(array_values($files));
 }