prompt: Your task is to convert the following English description into an ASCII tree format.
  
  caching is a principal directory that maintains 2 subdirectories: internal and local.
  At the main level, 'internal' features 1 subdirectory elements: controller.
  In nested path 'internal > controller', 'controller' encompasses 2 subfolders: operations, service.
  In nested path 'internal > controller > operations', 'operations' contains no subdirectories.
  In nested path 'internal → controller → service', The 'service' storage space appears to be unused.
  At the top level, 'local' incorporates 1 subdirectories: internal.
  In nested path 'local / internal', 'internal' holds no subdirectories at the moment.
  Back to the top level.
  
  
  Format your response in this style:
  ```
  tests
   +--helpers
   |   `--browser
   +--regression
   |   `--libs
   +--test262
   |   `--test262
   `--unit
       `--fixtures
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "caching\n +--internal\n |   `--controller\n |       +--operations\n |       `--service\n `--local\n     `--internal", "description": "caching is a principal directory that maintains 2 subdirectories: internal and local.\nAt the main level, 'internal' features 1 subdirectory elements: controller.\nIn nested path 'internal > controller', 'controller' encompasses 2 subfolders: operations, service.\nIn nested path 'internal > controller > operations', 'operations' contains no subdirectories.\nIn nested path 'internal \u2192 controller \u2192 service', The 'service' storage space appears to be unused.\nAt the top level, 'local' incorporates 1 subdirectories: internal.\nIn nested path 'local / internal', 'internal' holds no subdirectories at the moment.\nBack to the top level.\n"}