code: def test_rouge_l_summary_level():
      reference_text = (
          "one two three four five. one two three four five."
      )
      reference = PlaintextParser(
          reference_text, Tokenizer("english")
      ).document.sentences
  
      candidate_text = (
          "one two six seven eight. one three eight nine five."
      )
      candidates = PlaintextParser(
          candidate_text, Tokenizer("english")
      ).document.sentences
      rouge_l_summary_level(candidates, reference)
  
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 10 for calling a global function with example usage: test_rouge_l_summary_level() without return types