prompt: Your task is to convert the following English description into an ASCII tree format.
  
  __tests__ is a top-level directory that assembles 2 subdirectories: fixtures and test-helpers.
  At the main level, 'fixtures' keeps 1 contained folders: sample-site.
  Within directory hierarchy 'fixtures > sample-site', 'sample-site' organizes 1 directories: plugins.
  In nested path 'fixtures / sample-site / plugins', 'plugins' has 1 subdirectories: gatsby-plugin-test.
  Within directory hierarchy 'fixtures → sample-site → plugins → gatsby-plugin-test', 'gatsby-plugin-test' hasn't been filled with any content.
  At the top level, Inside 'test-helpers', you'll find it stands empty.
  
  
  Format your response in this style:
  ```
  not-found-revalidate
   +--pages
   |   +--fallback-blocking
   |   +--fallback-true
   |   `--initial-not-found
   `--test
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "__tests__\n +--fixtures\n |   `--sample-site\n |       `--plugins\n |           `--gatsby-plugin-test\n `--test-helpers", "description": "__tests__ is a top-level directory that assembles 2 subdirectories: fixtures and test-helpers.\nAt the main level, 'fixtures' keeps 1 contained folders: sample-site.\nWithin directory hierarchy 'fixtures > sample-site', 'sample-site' organizes 1 directories: plugins.\nIn nested path 'fixtures / sample-site / plugins', 'plugins' has 1 subdirectories: gatsby-plugin-test.\nWithin directory hierarchy 'fixtures \u2192 sample-site \u2192 plugins \u2192 gatsby-plugin-test', 'gatsby-plugin-test' hasn't been filled with any content.\nAt the top level, Inside 'test-helpers', you'll find it stands empty.\n"}