prompt: Your task is to convert the following English description into an ASCII tree format.
  
  config is a principal directory that includes 3 subdirectories: factorization, sources and type-cast.
  At the main level, Inside 'factorization', you'll find it hasn't been filled with any content.
  In the root directory, 'sources' contains nothing at present.
  In the root directory, 'type-cast' possesses 1 folders: type-casters.
  At level 2, in directory path 'type-cast → type-casters', Inside 'type-casters', you'll find it contains nothing at present.
  Back to the top level.
  
  
  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": "config\n +--factorization\n +--sources\n `--type-cast\n     `--type-casters", "description": "config is a principal directory that includes 3 subdirectories: factorization, sources and type-cast.\nAt the main level, Inside 'factorization', you'll find it hasn't been filled with any content.\nIn the root directory, 'sources' contains nothing at present.\nIn the root directory, 'type-cast' possesses 1 folders: type-casters.\nAt level 2, in directory path 'type-cast \u2192 type-casters', Inside 'type-casters', you'll find it contains nothing at present.\nBack to the top level.\n"}