code: def tearDown(self) -> None:
      clear_session()
  
file_path: calamari/calamari_ocr/test/test_model_zoo.py
imports: import os
  import tempfile
  import unittest
  from glob import glob
  from subprocess import check_call
  import pytest
  from tensorflow.python.keras.backend import clear_session
  from tfaip.data.databaseparams import DataPipelineParams
  from calamari_ocr.ocr.predict.params import PredictorParams
  from calamari_ocr.scripts.predict_and_eval import main, PredictAndEvalArgs
  from calamari_ocr.test.test_train_file import uw3_trainer_params
label_desc: Use image node_id 1 for calling the TestModelZoo obj's underlying member method code with example usage: obj.tearDown() without return types