prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  config
   +--config
   |   +--src
   |   `--test
   |       +--fixtures
   |       |   +--has-env-in-key
   |       |   +--has-number-setting
   |       |   +--never-built-dependencies
   |       |   +--pkg-using-workspaces
   |       |   +--pkg-with-valid-workspace-yaml
   |       |   `--settings-in-workspace-yaml
  ```
  
  Convert this description:
  
  app is a principal directory that includes 10 subdirectories. Notable ones include api, delayed, dyn among others.
  
  Let me break down the design for you:
  
  At the top level, 'api' retains 3 directory entries: isr, ssr, test.
  At level 2, in directory path 'api > isr', 'isr' houses 1 child directories: [slug].
  In nested path 'api > isr > [slug]', The '[slug]' collection appears to be unused.
  Within directory hierarchy 'api / ssr', 'ssr' encompasses 1 folders: [slug].
  In nested path 'api → ssr → [slug]', The '[slug]' repository appears to be unused.
  In nested path 'api > test', 'test' houses 1 folders for testing purposes.
  Within directory hierarchy 'api → test → [slug]', The '[slug]' directory lacks any subdirectories.
  Back to the top level.
  At the main level, 'delayed' remains unused.
  In the root directory, 'dyn' hosts 1 subdirectory elements: [slug].
  Within directory hierarchy 'dyn → [slug]', '[slug]' has no folders inside.
  At the top level, 'isr' retains 1 subfolders: [slug].
  In nested path 'isr → [slug]', '[slug]' is vacant.
  Back to the top level.
  At the top level, 'optional-catchall' houses 1 child directories: [lang].
  In nested path 'optional-catchall > [lang]', '[lang]' stores 1 subfolders: [flags].
  Within directory hierarchy 'optional-catchall > [lang] > [flags]', '[flags]' carries 1 subdirectories: [[...slug]].
  At level 4, in directory path 'optional-catchall / [lang] / [flags] / [[...slug]]', Inside '[[...slug]]', you'll find it has been left empty.
  At the top level, 'postpone' bundles 1 contained folders: isr.
  At level 2, in directory path 'postpone → isr', 'isr' incorporates 1 contained folders: [slug].
  In nested path 'postpone → isr → [slug]', '[slug]' remains unused.
  At the main level, 'rewrite' shelters 1 directories: [slug].
  Within directory hierarchy 'rewrite / [slug]', Inside '[slug]', you'll find it remains unused.
  At the top level, 'search' organizes 1 child directories: [key].
  Within directory hierarchy 'search → [key]', '[key]' has nothing inside.
  At the main level, 'ssr' hosts 1 nested folders: [slug].
  In nested path 'ssr → [slug]', '[slug]' lacks any subdirectories.
  Back to the top level.
  In the root directory, 'test' keeps 1 test-related directories.
  Within directory hierarchy 'test > [slug]', The '[slug]' container awaits content.
  Back to the top level.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "app\n +--api\n |   +--isr\n |   |   `--[slug]\n |   +--ssr\n |   |   `--[slug]\n |   `--test\n |       `--[slug]\n +--delayed\n +--dyn\n |   `--[slug]\n +--isr\n |   `--[slug]\n +--optional-catchall\n |   `--[lang]\n |       `--[flags]\n |           `--[[...slug]]\n +--postpone\n |   `--isr\n |       `--[slug]\n +--rewrite\n |   `--[slug]\n +--search\n |   `--[key]\n +--ssr\n |   `--[slug]\n `--test\n     `--[slug]", "description": "app is a principal directory that includes 10 subdirectories. Notable ones include api, delayed, dyn among others.\n\nLet me break down the design for you:\n\nAt the top level, 'api' retains 3 directory entries: isr, ssr, test.\nAt level 2, in directory path 'api > isr', 'isr' houses 1 child directories: [slug].\nIn nested path 'api > isr > [slug]', The '[slug]' collection appears to be unused.\nWithin directory hierarchy 'api / ssr', 'ssr' encompasses 1 folders: [slug].\nIn nested path 'api \u2192 ssr \u2192 [slug]', The '[slug]' repository appears to be unused.\nIn nested path 'api > test', 'test' houses 1 folders for testing purposes.\nWithin directory hierarchy 'api \u2192 test \u2192 [slug]', The '[slug]' directory lacks any subdirectories.\nBack to the top level.\nAt the main level, 'delayed' remains unused.\nIn the root directory, 'dyn' hosts 1 subdirectory elements: [slug].\nWithin directory hierarchy 'dyn \u2192 [slug]', '[slug]' has no folders inside.\nAt the top level, 'isr' retains 1 subfolders: [slug].\nIn nested path 'isr \u2192 [slug]', '[slug]' is vacant.\nBack to the top level.\nAt the top level, 'optional-catchall' houses 1 child directories: [lang].\nIn nested path 'optional-catchall > [lang]', '[lang]' stores 1 subfolders: [flags].\nWithin directory hierarchy 'optional-catchall > [lang] > [flags]', '[flags]' carries 1 subdirectories: [[...slug]].\nAt level 4, in directory path 'optional-catchall / [lang] / [flags] / [[...slug]]', Inside '[[...slug]]', you'll find it has been left empty.\nAt the top level, 'postpone' bundles 1 contained folders: isr.\nAt level 2, in directory path 'postpone \u2192 isr', 'isr' incorporates 1 contained folders: [slug].\nIn nested path 'postpone \u2192 isr \u2192 [slug]', '[slug]' remains unused.\nAt the main level, 'rewrite' shelters 1 directories: [slug].\nWithin directory hierarchy 'rewrite / [slug]', Inside '[slug]', you'll find it remains unused.\nAt the top level, 'search' organizes 1 child directories: [key].\nWithin directory hierarchy 'search \u2192 [key]', '[key]' has nothing inside.\nAt the main level, 'ssr' hosts 1 nested folders: [slug].\nIn nested path 'ssr \u2192 [slug]', '[slug]' lacks any subdirectories.\nBack to the top level.\nIn the root directory, 'test' keeps 1 test-related directories.\nWithin directory hierarchy 'test > [slug]', The '[slug]' container awaits content.\nBack to the top level.\n"}