prompt: Your task is to convert the following English description into an ASCII tree format.
  
  apps is a main directory that maintains 2 subdirectories: app1 and app2.
  At the main level, 'app1' encapsulates 1 subdirectory elements: lib.
  In nested path 'app1 / lib', The 'lib' directory contains nothing at present.
  In the root directory, 'app2' encapsulates 1 subdirectories: lib.
  At level 2, in directory path 'app2 / lib', Inside 'lib', you'll find it is a vacant space.
  
  
  Format your response in this style:
  ```
  ws
   +--__snapshots__
   `--test
       `--__snapshots__
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "apps\n +--app1\n |   `--lib\n `--app2\n     `--lib", "description": "apps is a main directory that maintains 2 subdirectories: app1 and app2.\nAt the main level, 'app1' encapsulates 1 subdirectory elements: lib.\nIn nested path 'app1 / lib', The 'lib' directory contains nothing at present.\nIn the root directory, 'app2' encapsulates 1 subdirectories: lib.\nAt level 2, in directory path 'app2 / lib', Inside 'lib', you'll find it is a vacant space.\n"}