prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  docs
   +--about
   +--advanced
   +--deployment
   +--how-to
   +--learn
   +--resources
   +--security
   `--tutorial
       +--dependencies
       `--security
  ```
  
  Convert this description:
  
  babel-runtime-corejs3 is a master directory that comprises 3 subdirectories: helpers, regenerator and test.
  At the top level, 'helpers' maintains 1 directory entries: esm.
  Within directory hierarchy 'helpers → esm', The 'esm' storage space hasn't been filled with any content.
  Back to the top level.
  At the main level, Inside 'regenerator', you'll find it stands empty.
  At the top level, Inside 'test', you'll find it is vacant.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "babel-runtime-corejs3\n +--helpers\n |   `--esm\n +--regenerator\n `--test", "description": "babel-runtime-corejs3 is a master directory that comprises 3 subdirectories: helpers, regenerator and test.\nAt the top level, 'helpers' maintains 1 directory entries: esm.\nWithin directory hierarchy 'helpers \u2192 esm', The 'esm' storage space hasn't been filled with any content.\nBack to the top level.\nAt the main level, Inside 'regenerator', you'll find it stands empty.\nAt the top level, Inside 'test', you'll find it is vacant.\n"}