prompt: Your task is to convert the following English description into an ASCII tree format.
  
  allow-development-build is a origin directory that holds 2 subdirectories: app and pages.
  At the top level, 'app' groups 1 subdirectories that organize the source code.
  Within directory hierarchy 'app / app-page', The 'app-page' data structure has yet to be populated.
  At the main level, 'pages' is barren.
  
  
  Format your response in this style:
  ```
  [lang]
   +--@modal
   |   +--(.)feed
   |   `--(.)photos
   |       `--[id]
   +--feed
   `--photos
       `--[id]
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "allow-development-build\n +--app\n |   `--app-page\n `--pages", "description": "allow-development-build is a origin directory that holds 2 subdirectories: app and pages.\nAt the top level, 'app' groups 1 subdirectories that organize the source code.\nWithin directory hierarchy 'app / app-page', The 'app-page' data structure has yet to be populated.\nAt the main level, 'pages' is barren.\n"}