code: def test_return_false_when_target_class_does_not_exist(imagenet):
      assert "invalid class" not in imagenet
  
file_path: flashtorch/tests/test_imagenet.py
imports: import pytest
  from collections.abc import Iterable
  from flashtorch.utils import ImageNetIndex
label_desc: Use image node_id 7 for calling a global function with example usage: test_return_false_when_target_class_does_not_exist(imagenet) without return types