prompt: Your task is to convert the following English description into an ASCII tree format.
  
  test is a source directory that collects 2 subdirectories: fixtures and precondition.
  In the root directory, 'fixtures' contains 1 directories: concurrent.
  In nested path 'fixtures → concurrent', The 'concurrent' storage space is vacant.
  At the main level, The 'precondition' container is devoid of content.
  
  
  Format your response in this style:
  ```
  node_modules
   +--@somenamespace
   |   `--eslint-formatter-foo
   `--eslint-formatter-bar
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "test\n +--fixtures\n |   `--concurrent\n `--precondition", "description": "test is a source directory that collects 2 subdirectories: fixtures and precondition.\nIn the root directory, 'fixtures' contains 1 directories: concurrent.\nIn nested path 'fixtures \u2192 concurrent', The 'concurrent' storage space is vacant.\nAt the main level, The 'precondition' container is devoid of content.\n"}