code: def __post_init__(self):
      self.probability = float(self.probability)
      self.label = int(self.label)
  
file_path: calamari/calamari_ocr/ocr/predict/params.py
imports: from dataclasses import dataclass, field
  from typing import Callable, List, Optional
  import numpy
  import tfaip
  from dataclasses_json import dataclass_json
  from paiargparse import pai_meta
  from tfaip.data.pipeline.definitions import Sample
label_desc: Use image node_id 1 for calling the PredictionCharacter obj's underlying member method code with example usage: obj.__post_init__() without return types