prompt: Your task is to convert the following English description into an ASCII tree format.
  
  ws is a core directory that houses 2 subdirectories: __snapshots__ and test.
  At the main level, '__snapshots__' stands empty.
  At the main level, 'test' houses 1 folders for testing purposes.
  Within directory hierarchy 'test / __snapshots__', '__snapshots__' is blank.
  Back to the top level.
  
  
  Format your response in this style:
  ```
  packages
   +--pkg-a
   |   `--src
   +--pkg-b
   |   `--src
   `--shared
       `--src
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "ws\n +--__snapshots__\n `--test\n     `--__snapshots__", "description": "ws is a core directory that houses 2 subdirectories: __snapshots__ and test.\nAt the main level, '__snapshots__' stands empty.\nAt the main level, 'test' houses 1 folders for testing purposes.\nWithin directory hierarchy 'test / __snapshots__', '__snapshots__' is blank.\nBack to the top level.\n"}