code: def setUp(self) -> None:
      pass
  
file_path: contextual-ai/tests/explainer/test_utils.py
imports: import unittest
  import numpy
  from xai.explainer.utils import explanation_to_json
  from xai.explainer.constants import MODE, OUTPUT
label_desc: Use image node_id 1 for calling the TestUtils obj's underlying member method code with example usage: obj.setUp() without return types