prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  [lang]
   +--@modal
   |   +--(.)feed
   |   `--(.)photos
   |       `--[id]
   +--feed
   `--photos
       `--[id]
  ```
  
  Convert this description:
  
  async_chunk is a central directory that houses 2 subdirectories: input and output.
  At the main level, 'input' holds 1 nested folders: node_modules.
  Within directory hierarchy 'input > node_modules', 'node_modules' includes 2 packages: bar, foo.
  Within directory hierarchy 'input / node_modules / bar', Inside 'bar', you'll find it has no folders inside.
  Within directory hierarchy 'input → node_modules → foo', 'foo' is empty.
  Back to the top level.
  At the main level, Inside 'output', you'll find it remains unused.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "async_chunk\n +--input\n |   `--node_modules\n |       +--bar\n |       `--foo\n `--output", "description": "async_chunk is a central directory that houses 2 subdirectories: input and output.\nAt the main level, 'input' holds 1 nested folders: node_modules.\nWithin directory hierarchy 'input > node_modules', 'node_modules' includes 2 packages: bar, foo.\nWithin directory hierarchy 'input / node_modules / bar', Inside 'bar', you'll find it has no folders inside.\nWithin directory hierarchy 'input \u2192 node_modules \u2192 foo', 'foo' is empty.\nBack to the top level.\nAt the main level, Inside 'output', you'll find it remains unused.\n"}