prompt: Your task is to convert the following English description into an ASCII tree format.
  
  installation is a central directory that organizes 2 subdirectories: assets and src.
  At the main level, 'assets' has 2 subdirectory elements: puppeteer, puppeteer-core.
  In nested path 'assets → puppeteer', 'puppeteer' maintains 2 subfolders: configuration, webpack.
  At level 3, in directory path 'assets / puppeteer / configuration', The 'configuration' data structure is barren.
  Within directory hierarchy 'assets > puppeteer > webpack', Inside 'webpack', you'll find it stands empty.
  In nested path 'assets > puppeteer-core', The 'puppeteer-core' section lacks any subdirectories.
  Back to the top level.
  At the main level, 'src' has been left empty.
  
  
  Format your response in this style:
  ```
  image-optimizer
   +--app
   |   +--pages
   |   |   `--api
   |   |       `--stateful
   |   `--public
   `--test
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "installation\n +--assets\n |   +--puppeteer\n |   |   +--configuration\n |   |   `--webpack\n |   `--puppeteer-core\n `--src", "description": "installation is a central directory that organizes 2 subdirectories: assets and src.\nAt the main level, 'assets' has 2 subdirectory elements: puppeteer, puppeteer-core.\nIn nested path 'assets \u2192 puppeteer', 'puppeteer' maintains 2 subfolders: configuration, webpack.\nAt level 3, in directory path 'assets / puppeteer / configuration', The 'configuration' data structure is barren.\nWithin directory hierarchy 'assets > puppeteer > webpack', Inside 'webpack', you'll find it stands empty.\nIn nested path 'assets > puppeteer-core', The 'puppeteer-core' section lacks any subdirectories.\nBack to the top level.\nAt the main level, 'src' has been left empty.\n"}