prompt: Your task is to convert the following English description into an ASCII tree format.
  
  guide is a root directory that comprises 3 subdirectories: advanced, concepts and getting-started.
  At the main level, 'advanced' keeps 3 child directories: fixed-layout, free-layout, variable.
  Within directory hierarchy 'advanced → fixed-layout', Inside 'fixed-layout', you'll find it is devoid of content.
  Within directory hierarchy 'advanced > free-layout', Inside 'free-layout', you'll find it is vacant.
  Within directory hierarchy 'advanced / variable', The 'variable' compartment remains unused.
  At the top level, Inside 'concepts', you'll find it is vacant.
  At the top level, 'getting-started' is an empty container.
  
  
  Format your response in this style:
  ```
  tests
   +--client_certs
   |   `--password_protected
   +--fixtures
   |   +--session_data
   |   |   +--new
   |   |   `--old
   |   `--xmldata
   |       +--invalid
   |       +--valid
   |       `--xhtml
   `--utils
       `--matching
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "guide\n +--advanced\n |   +--fixed-layout\n |   +--free-layout\n |   `--variable\n +--concepts\n `--getting-started", "description": "guide is a root directory that comprises 3 subdirectories: advanced, concepts and getting-started.\nAt the main level, 'advanced' keeps 3 child directories: fixed-layout, free-layout, variable.\nWithin directory hierarchy 'advanced \u2192 fixed-layout', Inside 'fixed-layout', you'll find it is devoid of content.\nWithin directory hierarchy 'advanced > free-layout', Inside 'free-layout', you'll find it is vacant.\nWithin directory hierarchy 'advanced / variable', The 'variable' compartment remains unused.\nAt the top level, Inside 'concepts', you'll find it is vacant.\nAt the top level, 'getting-started' is an empty container.\n"}