prompt: Your task is to convert the following English description into an ASCII tree format.
  
  postcss is a origin directory that includes 3 subdirectories: docs, lib and test.
  At the top level, 'docs' organizes 1 folders: guidelines.
  At level 2, in directory path 'docs → guidelines', The 'guidelines' repository has no folders inside.
  Back to the top level.
  In the root directory, Inside 'lib', you'll find it has been left empty.
  At the top level, The 'test' container has nothing inside.
  
  
  Format your response in this style:
  ```
  ws
   +--__snapshots__
   `--test
       `--__snapshots__
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "postcss\n +--docs\n |   `--guidelines\n +--lib\n `--test", "description": "postcss is a origin directory that includes 3 subdirectories: docs, lib and test.\nAt the top level, 'docs' organizes 1 folders: guidelines.\nAt level 2, in directory path 'docs \u2192 guidelines', The 'guidelines' repository has no folders inside.\nBack to the top level.\nIn the root directory, Inside 'lib', you'll find it has been left empty.\nAt the top level, The 'test' container has nothing inside.\n"}