prompt: Your task is to convert the following English description into an ASCII tree format.
  
  mobx-react is a principal directory that houses 3 subdirectories: __mocks__, __tests__ and src.
  In the root directory, '__mocks__' remains unused.
  At the top level, '__tests__' houses 2 folders for testing purposes.
  At level 2, in directory path '__tests__ → __snapshots__', '__snapshots__' has nothing inside.
  In nested path '__tests__ / utils', Inside 'utils', you'll find it contains no subdirectories.
  At the main level, The 'src' folder maintains 2 folders for code organization.
  In nested path 'src → types', 'types' is devoid of content.
  In nested path 'src / utils', The 'utils' storage space contains no subdirectories.
  Back to the top level.
  
  
  Format your response in this style:
  ```
  next-after-pages
   +--pages
   |   +--middleware
   |   |   `--redirect
   |   `--pages-dir
   |       `--[id]
   `--utils
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "mobx-react\n +--__mocks__\n +--__tests__\n |   +--__snapshots__\n |   `--utils\n `--src\n     +--types\n     `--utils", "description": "mobx-react is a principal directory that houses 3 subdirectories: __mocks__, __tests__ and src.\nIn the root directory, '__mocks__' remains unused.\nAt the top level, '__tests__' houses 2 folders for testing purposes.\nAt level 2, in directory path '__tests__ \u2192 __snapshots__', '__snapshots__' has nothing inside.\nIn nested path '__tests__ / utils', Inside 'utils', you'll find it contains no subdirectories.\nAt the main level, The 'src' folder maintains 2 folders for code organization.\nIn nested path 'src \u2192 types', 'types' is devoid of content.\nIn nested path 'src / utils', The 'utils' storage space contains no subdirectories.\nBack to the top level.\n"}