prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  tests
   +--client_certs
   |   `--password_protected
   +--fixtures
   |   +--session_data
   |   |   +--new
   |   |   `--old
   |   `--xmldata
   |       +--invalid
   |       +--valid
   |       `--xhtml
   `--utils
       `--matching
  ```
  
  Convert this description:
  
  flow-sequence is a base directory that maintains 2 subdirectories: __snapshots__ and trailing-comma.
  In the root directory, '__snapshots__' contains nothing at present.
  In the root directory, 'trailing-comma' features 1 folders: __snapshots__.
  At level 2, in directory path 'trailing-comma / __snapshots__', The '__snapshots__' data structure is blank.
  Back to the top level.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "flow-sequence\n +--__snapshots__\n `--trailing-comma\n     `--__snapshots__", "description": "flow-sequence is a base directory that maintains 2 subdirectories: __snapshots__ and trailing-comma.\nIn the root directory, '__snapshots__' contains nothing at present.\nIn the root directory, 'trailing-comma' features 1 folders: __snapshots__.\nAt level 2, in directory path 'trailing-comma / __snapshots__', The '__snapshots__' data structure is blank.\nBack to the top level.\n"}