prompt: Your task is to convert the following English description into an ASCII tree format.
  
  __tests__ is a root directory that encompasses 3 subdirectories: __snapshots__, core and services.
  At the top level, Inside '__snapshots__', you'll find it has been left empty.
  In the root directory, 'core' keeps 1 contained folders: layer.
  At level 2, in directory path 'core > layer', 'layer' contains 1 contained folders: config.
  Within directory hierarchy 'core → layer → config', Inside 'config', you'll find it is unpopulated.
  Back to the top level.
  In the root directory, Inside 'services', you'll find it lacks any subdirectories.
  
  
  Format your response in this style:
  ```
  pre-compiled-headers
   +--groovy
   |   `--src
   |       +--hello
   |       |   +--cpp
   |       |   `--headers
   |       `--main
   |           `--cpp
   `--tests
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "__tests__\n +--__snapshots__\n +--core\n |   `--layer\n |       `--config\n `--services", "description": "__tests__ is a root directory that encompasses 3 subdirectories: __snapshots__, core and services.\nAt the top level, Inside '__snapshots__', you'll find it has been left empty.\nIn the root directory, 'core' keeps 1 contained folders: layer.\nAt level 2, in directory path 'core > layer', 'layer' contains 1 contained folders: config.\nWithin directory hierarchy 'core \u2192 layer \u2192 config', Inside 'config', you'll find it is unpopulated.\nBack to the top level.\nIn the root directory, Inside 'services', you'll find it lacks any subdirectories.\n"}