prompt: Your task is to convert the following English description into an ASCII tree format.
  
  src is a head directory that features 3 subdirectories: mocks, node and plugins.
  At the top level, 'mocks' encompasses 1 subdirectories: app.
  Within directory hierarchy 'mocks > app', The 'app' storage space sits empty.
  At the top level, The 'node' container is unpopulated.
  At the main level, The 'plugins' container has no folders inside.
  
  
  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": "src\n +--mocks\n |   `--app\n +--node\n `--plugins", "description": "src is a head directory that features 3 subdirectories: mocks, node and plugins.\nAt the top level, 'mocks' encompasses 1 subdirectories: app.\nWithin directory hierarchy 'mocks > app', The 'app' storage space sits empty.\nAt the top level, The 'node' container is unpopulated.\nAt the main level, The 'plugins' container has no folders inside.\n"}