prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  kotlin
   +--my-sub-project
   `--src
       +--main
       |   `--java
       `--test
           `--java
  ```
  
  Convert this description:
  
  @slot is a master directory that comprises 2 subdirectories: [...catchAll] and foo.
  At the main level, '[...catchAll]' remains unused.
  At the main level, 'foo' keeps 1 nested folders: [...catchAll].
  Within directory hierarchy 'foo > [...catchAll]', Inside '[...catchAll]', you'll find it is barren.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "@slot\n +--[...catchAll]\n `--foo\n     `--[...catchAll]", "description": "@slot is a master directory that comprises 2 subdirectories: [...catchAll] and foo.\nAt the main level, '[...catchAll]' remains unused.\nAt the main level, 'foo' keeps 1 nested folders: [...catchAll].\nWithin directory hierarchy 'foo > [...catchAll]', Inside '[...catchAll]', you'll find it is barren.\n"}