code: def __init__(self) -> None:
      self._input_vals: List[PartitionInputVal] = []
      self._output_vals: List[PartitionOutputVal] = []
  
imports: from dataclasses import dataclass
  from typing import Dict, List
label_desc: Use image node_id 1 to create a new Partition object from inherited base classes: object with example: obj = Partition()