prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  node_modules
   +--@somenamespace
   |   `--eslint-formatter-foo
   `--eslint-formatter-bar
  ```
  
  Convert this description:
  
  empty dir --out-dir is a base directory that holds 2 subdirectories: in-files and out-files.
  In the root directory, 'in-files' keeps 1 subdirectories: src.
  In nested path 'in-files / src', 'src' is empty.
  At the main level, 'out-files' encompasses 1 subdirectories: src.
  In nested path 'out-files → src', The 'src' collection is blank.
  Back to the top level.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "empty dir --out-dir\n +--in-files\n |   `--src\n `--out-files\n     `--src", "description": "empty dir --out-dir is a base directory that holds 2 subdirectories: in-files and out-files.\nIn the root directory, 'in-files' keeps 1 subdirectories: src.\nIn nested path 'in-files / src', 'src' is empty.\nAt the main level, 'out-files' encompasses 1 subdirectories: src.\nIn nested path 'out-files \u2192 src', The 'src' collection is blank.\nBack to the top level.\n"}