prompt: Your task is to convert the following English description into an ASCII tree format.
  
  dir --out-dir --source-maps is a fundamental directory that contains 2 subdirectories: in-files and out-files.
  At the main level, 'in-files' comprises 1 subdirectories: src.
  In nested path 'in-files / src', The 'src' directory carries 1 folders for code organization.
  In nested path 'in-files → src → bar', 'bar' is blank.
  Back to the top level.
  At the top level, 'out-files' retains 1 nested folders: lib.
  Within directory hierarchy 'out-files > lib', The 'lib' data structure houses 1 folders for code organization.
  Within directory hierarchy 'out-files > lib > bar', 'bar' is devoid of content.
  Back to the top level.
  
  
  Format your response in this style:
  ```
  docs
   +--customization
   +--development
   +--images
   +--samples
   |   `--webpack-getting-started
   |       `--src
   `--usage
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "dir --out-dir --source-maps\n +--in-files\n |   `--src\n |       `--bar\n `--out-files\n     `--lib\n         `--bar", "description": "dir --out-dir --source-maps is a fundamental directory that contains 2 subdirectories: in-files and out-files.\nAt the main level, 'in-files' comprises 1 subdirectories: src.\nIn nested path 'in-files / src', The 'src' directory carries 1 folders for code organization.\nIn nested path 'in-files \u2192 src \u2192 bar', 'bar' is blank.\nBack to the top level.\nAt the top level, 'out-files' retains 1 nested folders: lib.\nWithin directory hierarchy 'out-files > lib', The 'lib' data structure houses 1 folders for code organization.\nWithin directory hierarchy 'out-files > lib > bar', 'bar' is devoid of content.\nBack to the top level.\n"}