code: def setUp(self):
      prepare_test_data()
  
file_path: MONAI/tests/test_lesion_froc.py
imports: from __future__ import annotations
  import os
  import unittest
  from unittest import skipUnless
  import numpy
  from parameterized import parameterized
  from monai.apps.pathology.metrics import LesionFROC
  from monai.utils import optional_import
label_desc: Use image node_id 1 for calling the TestEvaluateTumorFROC obj's underlying member method code with example usage: obj.setUp() without return types