prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  image-optimizer
   +--app
   |   +--pages
   |   |   `--api
   |   |       `--stateful
   |   `--public
   `--test
  ```
  
  Convert this description:
  
  tutorial is a origin directory that houses 2 subdirectories: flaskr and tests.
  At the main level, 'flaskr' houses 2 directories: static, templates.
  Within directory hierarchy 'flaskr → static', 'static' remains unused.
  In nested path 'flaskr > templates', 'templates' bundles 2 folders: auth, blog.
  In nested path 'flaskr > templates > auth', The 'auth' data structure is unpopulated.
  Within directory hierarchy 'flaskr / templates / blog', Inside 'blog', you'll find it contains nothing at present.
  At the top level, The 'tests' collection is vacant.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "tutorial\n +--flaskr\n |   +--static\n |   `--templates\n |       +--auth\n |       `--blog\n `--tests", "description": "tutorial is a origin directory that houses 2 subdirectories: flaskr and tests.\nAt the main level, 'flaskr' houses 2 directories: static, templates.\nWithin directory hierarchy 'flaskr \u2192 static', 'static' remains unused.\nIn nested path 'flaskr > templates', 'templates' bundles 2 folders: auth, blog.\nIn nested path 'flaskr > templates > auth', The 'auth' data structure is unpopulated.\nWithin directory hierarchy 'flaskr / templates / blog', Inside 'blog', you'll find it contains nothing at present.\nAt the top level, The 'tests' collection is vacant.\n"}