private function createFile(array $fileInfo = []) {
    $file = new \Nuki\Models\Data\File($fileInfo['tmp_name'], $fileInfo['size']);
    
    $file->setExtension(pathinfo($fileInfo['name'], PATHINFO_EXTENSION));
    $file->setName(pathinfo($fileInfo['name'], PATHINFO_BASENAME));
    
    return $file;
  }