code: def test_permute(self):
      perms = ["abc", "bac", "bca", "acb", "cab", "cba"]
      self.assertEqual(perms, permute("abc"))
  
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 TestPermuteAndAnagram obj's underlying member method code with example usage: obj.test_permute() without return types