prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  docs
   +--dsl
   |   +--docbook
   |   |   `--model
   |   +--links
   |   `--source
   |       `--model
   `--model
  ```
  
  Convert this description:
  
  middleware-typescript is a base directory that maintains 2 subdirectories: app and test.
  At the main level, 'app' stores 1 subdirectories that organize the source code.
  In nested path 'app > pages', 'pages' remains unused.
  Back to the top level.
  At the main level, 'test' has been left empty.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "middleware-typescript\n +--app\n |   `--pages\n `--test", "description": "middleware-typescript is a base directory that maintains 2 subdirectories: app and test.\nAt the main level, 'app' stores 1 subdirectories that organize the source code.\nIn nested path 'app > pages', 'pages' remains unused.\nBack to the top level.\nAt the main level, 'test' has been left empty.\n"}