prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  resolve-dynamic-import
   +--_expected
   |   +--amd
   |   +--cjs
   |   +--es
   |   `--system
   `--nested
  ```
  
  Convert this description:
  
  docs is a top-level directory that contains 2 subdirectories: dsl and model.
  In the root directory, 'dsl' houses 3 subdirectories: docbook, links, source.
  Within directory hierarchy 'dsl > docbook', The 'docbook' directory is vacant.
  In nested path 'dsl > links', Inside 'links', you'll find it has no content.
  Within directory hierarchy 'dsl → source', 'source' has 1 directories: model.
  In nested path 'dsl → source → model', Inside 'model', you'll find it is blank.
  Back to the top level.
  At the top level, 'model' is currently empty.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "docs\n +--dsl\n |   +--docbook\n |   +--links\n |   `--source\n |       `--model\n `--model", "description": "docs is a top-level directory that contains 2 subdirectories: dsl and model.\nIn the root directory, 'dsl' houses 3 subdirectories: docbook, links, source.\nWithin directory hierarchy 'dsl > docbook', The 'docbook' directory is vacant.\nIn nested path 'dsl > links', Inside 'links', you'll find it has no content.\nWithin directory hierarchy 'dsl \u2192 source', 'source' has 1 directories: model.\nIn nested path 'dsl \u2192 source \u2192 model', Inside 'model', you'll find it is blank.\nBack to the top level.\nAt the top level, 'model' is currently empty.\n"}