prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  api
   +--plugins
   `--tasks
       `--bundling
  ```
  
  Convert this description:
  
  tests is a root directory that collects 2 subdirectories: autobahn and isolated.
  In the root directory, 'autobahn' stores 2 subdirectories: client, server.
  At level 2, in directory path 'autobahn / client', The 'client' folder sits empty.
  At level 2, in directory path 'autobahn → server', 'server' is vacant.
  Back to the top level.
  At the top level, 'isolated' is unpopulated.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "tests\n +--autobahn\n |   +--client\n |   `--server\n `--isolated", "description": "tests is a root directory that collects 2 subdirectories: autobahn and isolated.\nIn the root directory, 'autobahn' stores 2 subdirectories: client, server.\nAt level 2, in directory path 'autobahn / client', The 'client' folder sits empty.\nAt level 2, in directory path 'autobahn \u2192 server', 'server' is vacant.\nBack to the top level.\nAt the top level, 'isolated' is unpopulated.\n"}