code: def __init__(self, data: Dict[str, ProductVersionInfo]):
      self._product_versions = data
  
file_path: hail/batch/batch/driver/billing_manager.py
imports: import abc
  import logging
  from dataclasses import dataclass
  from typing import Dict, List, Optional
  from gear import Database, transaction
  from .pricing import Price
label_desc: Use image node_id 1 to create a new ProductVersions object  with example: obj = ProductVersions(data)