code: def test_recon_lcs():
      assert _recon_lcs("1234", "1224533324") == ("1", "2", "3", "4")
      assert _recon_lcs("thisisatest", "testing123testing") == (
          "t",
          "s",
          "i",
          "t",
          "e",
          "s",
          "t",
      )
  
file_path: sumy/tests/test_evaluation/test_evaluation_rouge.py
imports: from __future__ import absolute_import
  from __future__ import division, print_function, unicode_literals
  from pytest import approx
  from sumy.evaluation import rouge_n, rouge_l_sentence_level, rouge_l_summary_level
  from sumy.evaluation.rouge import _get_ngrams, _split_into_words, _get_word_ngrams, _len_lcs, _recon_lcs, _union_lcs
  from sumy.nlp.tokenizers import Tokenizer
  from sumy.parsers.plaintext import PlaintextParser
label_desc: Use image node_id 6 for calling a global function with example usage: test_recon_lcs() without return types