code: def test_import_dali_tf_load_fail(self):
      with self.assertRaises(Exception):
          import nvidia.dali.plugin.tf as dali_tf
  
imports: import unittest
label_desc: Use image node_id 1 for calling the TestDaliTfPluginLoadFail obj's underlying member method code with example usage: obj.test_import_dali_tf_load_fail() without return types