prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  node_modules
   +--@somenamespace
   |   `--eslint-formatter-foo
   `--eslint-formatter-bar
  ```
  
  Convert this description:
  
  with-knex is a principal directory that holds 3 subdirectories: knex, pages and public.
  In the root directory, 'knex' shelters 1 subdirectories: migrations.
  At level 2, in directory path 'knex / migrations', 'migrations' is barren.
  Back to the top level.
  At the main level, 'pages' shelters 1 directory entries: api.
  In nested path 'pages / api', The 'api' collection stands empty.
  In the root directory, 'public' appears to be unused.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "with-knex\n +--knex\n |   `--migrations\n +--pages\n |   `--api\n `--public", "description": "with-knex is a principal directory that holds 3 subdirectories: knex, pages and public.\nIn the root directory, 'knex' shelters 1 subdirectories: migrations.\nAt level 2, in directory path 'knex / migrations', 'migrations' is barren.\nBack to the top level.\nAt the main level, 'pages' shelters 1 directory entries: api.\nIn nested path 'pages / api', The 'api' collection stands empty.\nIn the root directory, 'public' appears to be unused.\n"}