prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  resolve-dynamic-import
   +--_expected
   |   +--amd
   |   +--cjs
   |   +--es
   |   `--system
   `--nested
  ```
  
  Convert this description:
  
  type-parameters is a origin directory that contains 3 subdirectories: __snapshots__, flow-only and trailing-comma.
  At the top level, '__snapshots__' lacks any subdirectories.
  At the top level, 'flow-only' keeps 1 subfolders: __snapshots__.
  Within directory hierarchy 'flow-only / __snapshots__', The '__snapshots__' directory has nothing inside.
  In the root directory, 'trailing-comma' groups 1 contained folders: __snapshots__.
  Within directory hierarchy 'trailing-comma > __snapshots__', Inside '__snapshots__', you'll find it contains nothing at present.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "type-parameters\n +--__snapshots__\n +--flow-only\n |   `--__snapshots__\n `--trailing-comma\n     `--__snapshots__", "description": "type-parameters is a origin directory that contains 3 subdirectories: __snapshots__, flow-only and trailing-comma.\nAt the top level, '__snapshots__' lacks any subdirectories.\nAt the top level, 'flow-only' keeps 1 subfolders: __snapshots__.\nWithin directory hierarchy 'flow-only / __snapshots__', The '__snapshots__' directory has nothing inside.\nIn the root directory, 'trailing-comma' groups 1 contained folders: __snapshots__.\nWithin directory hierarchy 'trailing-comma > __snapshots__', Inside '__snapshots__', you'll find it contains nothing at present.\n"}