code: def __post_init__(self):
      self.data.downscale_factor = (
          self.model.compute_downscale_factor().x
      )
  
file_path: calamari/calamari_ocr/ocr/scenario_params.py
imports: from dataclasses import dataclass
  from typing import TypeVar
  from paiargparse import pai_dataclass
  from tfaip import ScenarioBaseParams
  from calamari_ocr.ocr import DataParams
  from calamari_ocr.ocr.model.ensemblemodel import EnsembleModelParams
  from calamari_ocr.ocr.model.params import ModelParams
label_desc: Use image node_id 1 for calling the CalamariScenarioBaseParams obj's underlying member method code with example usage: obj.__post_init__() without return types