code: def test_generate_parenthesis(self):
      self.assertEqual(generate_parenthesis_v1(2), ["()()", "(())"])
      self.assertEqual(
          generate_parenthesis_v1(3),
          ["()()()", "()(())", "(())()", "(()())", "((()))"],
      )
      self.assertEqual(generate_parenthesis_v2(2), ["(())", "()()"])
      self.assertEqual(
          generate_parenthesis_v2(3),
          ["((()))", "(()())", "(())()", "()(())", "()()()"],
      )
  
imports: from algorithms.backtrack import add_operators, permute_iter, anagram, array_sum_combinations, unique_array_sum_combinations, combination_sum, get_factors, recursive_get_factors, find_words, generate_abbreviations, generate_parenthesis_v1, generate_parenthesis_v2, letter_combinations, palindromic_substrings, pattern_match, permute_unique, permute, permute_recursive, subsets_unique, subsets, subsets_v2
  import unittest
label_desc: Use image node_id 1 for calling the TestGenerateParenthesis obj's underlying member method code with example usage: obj.test_generate_parenthesis() without return types