prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  buildinit
   +--plugins
   |   `--internal
   |       +--maven
   |       `--modifiers
   `--tasks
  ```
  
  Convert this description:
  
  filename --out-dir is a core directory that incorporates 2 subdirectories: in-files and out-files.
  At the top level, 'in-files' groups 1 subfolders: src.
  Within directory hierarchy 'in-files / src', 'src' has been left empty.
  At the main level, 'out-files' shelters 1 child directories: lib.
  In nested path 'out-files / lib', The 'lib' storage space is currently empty.
  Back to the top level.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "filename --out-dir\n +--in-files\n |   `--src\n `--out-files\n     `--lib", "description": "filename --out-dir is a core directory that incorporates 2 subdirectories: in-files and out-files.\nAt the top level, 'in-files' groups 1 subfolders: src.\nWithin directory hierarchy 'in-files / src', 'src' has been left empty.\nAt the main level, 'out-files' shelters 1 child directories: lib.\nIn nested path 'out-files / lib', The 'lib' storage space is currently empty.\nBack to the top level.\n"}