prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  tokens
   +--record-and-tuple-babel-7
   |   +--brace-bar
   |   +--brace-hash
   |   +--bracket-bar
   |   `--bracket-hash
   +--template-string
   |   +--basic
   |   +--invalid-octal
   |   `--invalid-unicode-escape-codepoint
   `--template-string-babel-7
       +--basic
       +--invalid-octal
       `--invalid-unicode-escape-codepoint
  ```
  
  Convert this description:
  
  extension is a parent directory that maintains 4 subdirectories. Notable ones include app, lib, test among others.
  
  The project source code seems to be organized in several locations: app, lib.
  
  Let me break down the setup for you:
  
  At the top level, 'app' retains 2 subdirectories that organize the source code.
  In nested path 'app → v2', The 'v2' repository remains unused.
  At level 2, in directory path 'app / v3', The 'v3' container is devoid of content.
  In the root directory, Inside 'lib', you'll find it remains unused.
  In the root directory, 'test' has 3 test-related directories.
  Within directory hierarchy 'test > helpers', The 'helpers' collection stands empty.
  At level 2, in directory path 'test > integration', 'integration' has 2 subdirectory elements: v2, v3.
  In nested path 'test / integration / v2', The 'v2' section remains unused.
  Within directory hierarchy 'test → integration → v3', The 'v3' storage space is a vacant space.
  Within directory hierarchy 'test > unit', Inside 'unit', you'll find it has yet to be populated.
  At the main level, 'theme' has 1 subdirectory elements: images.
  Within directory hierarchy 'theme → images', The 'images' collection appears to be unused.
  Back to the top level.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "extension\n +--app\n |   +--v2\n |   `--v3\n +--lib\n +--test\n |   +--helpers\n |   +--integration\n |   |   +--v2\n |   |   `--v3\n |   `--unit\n `--theme\n     `--images", "description": "extension is a parent directory that maintains 4 subdirectories. Notable ones include app, lib, test among others.\n\nThe project source code seems to be organized in several locations: app, lib.\n\nLet me break down the setup for you:\n\nAt the top level, 'app' retains 2 subdirectories that organize the source code.\nIn nested path 'app \u2192 v2', The 'v2' repository remains unused.\nAt level 2, in directory path 'app / v3', The 'v3' container is devoid of content.\nIn the root directory, Inside 'lib', you'll find it remains unused.\nIn the root directory, 'test' has 3 test-related directories.\nWithin directory hierarchy 'test > helpers', The 'helpers' collection stands empty.\nAt level 2, in directory path 'test > integration', 'integration' has 2 subdirectory elements: v2, v3.\nIn nested path 'test / integration / v2', The 'v2' section remains unused.\nWithin directory hierarchy 'test \u2192 integration \u2192 v3', The 'v3' storage space is a vacant space.\nWithin directory hierarchy 'test > unit', Inside 'unit', you'll find it has yet to be populated.\nAt the main level, 'theme' has 1 subdirectory elements: images.\nWithin directory hierarchy 'theme \u2192 images', The 'images' collection appears to be unused.\nBack to the top level.\n"}