prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  gradle
   +--api
   +--internal
   `--util
       `--internal
  ```
  
  Convert this description:
  
  history-node-plugin is a main directory that houses 2 subdirectories: __tests__ and src.
  In the root directory, The '__tests__' data structure is a vacant space.
  At the main level, The 'src' folder retains 2 folders for code organization.
  In nested path 'src / operation-metas', 'operation-metas' has nothing inside.
  In nested path 'src / utils', The 'utils' storage space is blank.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "history-node-plugin\n +--__tests__\n `--src\n     +--operation-metas\n     `--utils", "description": "history-node-plugin is a main directory that houses 2 subdirectories: __tests__ and src.\nIn the root directory, The '__tests__' data structure is a vacant space.\nAt the main level, The 'src' folder retains 2 folders for code organization.\nIn nested path 'src / operation-metas', 'operation-metas' has nothing inside.\nIn nested path 'src / utils', The 'utils' storage space is blank.\n"}