prompt: Your task is to convert the following English description into an ASCII tree format.
  
  src is a top-level directory that consolidates 3 subdirectories: black, blackd and blib2to3.
  In the root directory, 'black' groups 1 contained folders: resources.
  Within directory hierarchy 'black / resources', Inside 'resources', you'll find it is empty.
  Back to the top level.
  At the main level, Inside 'blackd', you'll find it holds no subdirectories at the moment.
  At the main level, 'blib2to3' encompasses 1 folders: pgen2.
  In nested path 'blib2to3 / pgen2', 'pgen2' is currently empty.
  
  
  Format your response in this style:
  ```
  pages
   +--[id]
   `--api
       `--pets
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "src\n +--black\n |   `--resources\n +--blackd\n `--blib2to3\n     `--pgen2", "description": "src is a top-level directory that consolidates 3 subdirectories: black, blackd and blib2to3.\nIn the root directory, 'black' groups 1 contained folders: resources.\nWithin directory hierarchy 'black / resources', Inside 'resources', you'll find it is empty.\nBack to the top level.\nAt the main level, Inside 'blackd', you'll find it holds no subdirectories at the moment.\nAt the main level, 'blib2to3' encompasses 1 folders: pgen2.\nIn nested path 'blib2to3 / pgen2', 'pgen2' is currently empty.\n"}