code: def test_subclass(self):
      instance = TestAbstractSuggestionAlgorithm()
  
      # Test if it is AbstractSuggestionAlgorithm
      self.assertTrue(isinstance(instance, AbstractSuggestionAlgorithm))
  
      # Test if it is TestAbstractSuggestionAlgorithm
      self.assertTrue(
          isinstance(instance, TestAbstractSuggestionAlgorithm)
      )
      self.assertEqual(
          instance.__class__, TestAbstractSuggestionAlgorithm
      )
  
file_path: advisor/advisor_server/suggestion/algorithm/abstract_algorithm_test.py
imports: from django.test import TestCase
  from suggestion.algorithm.abstract_algorithm import AbstractSuggestionAlgorithm
label_desc: Use image node_id 3 for calling the RandomSearchAlgorithmTest obj's underlying member method code with example usage: obj.test_subclass() without return types