prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  fixtures
   +--behavior
   |   +--get-with-falsy-receiver
   |   `--get-without-receiver
   +--dependencies
   |   +--basic
   |   +--deep
   |   +--missing
   |   +--multiple
   |   +--rename-binding-equal
   |   +--rename-deep-global
   |   +--reuse-dependency
   |   `--variable-same-name-dependency
   `--misc
       +--9496
  ```
  
  Convert this description:
  
  app-tw-empty is a core directory that organizes 2 subdirectories: js and ts.
  At the main level, 'js' shelters 1 nested folders: app.
  Within directory hierarchy 'js > app', 'app' holds no subdirectories at the moment.
  At the main level, 'ts' houses 1 subdirectory elements: app.
  Within directory hierarchy 'ts > app', Inside 'app', you'll find it is unpopulated.
  Back to the top level.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "app-tw-empty\n +--js\n |   `--app\n `--ts\n     `--app", "description": "app-tw-empty is a core directory that organizes 2 subdirectories: js and ts.\nAt the main level, 'js' shelters 1 nested folders: app.\nWithin directory hierarchy 'js > app', 'app' holds no subdirectories at the moment.\nAt the main level, 'ts' houses 1 subdirectory elements: app.\nWithin directory hierarchy 'ts > app', Inside 'app', you'll find it is unpopulated.\nBack to the top level.\n"}