code: def test_significant_words(summarizer):
      summarizer.significant_percentage = 1 / 5
      words = summarizer._get_significant_words(
          (
              "wa",
              "wb",
              "wc",
              "wd",
              "we",
              "wf",
              "wg",
              "wh",
              "wi",
              "wj",
              "wa",
              "wb",
          )
      )
  
      assert tuple(sorted(words)) == ("wa", "wb")
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import pytest
  from sumy.summarizers.luhn import LuhnSummarizer
  from ..utils import build_sentence
label_desc: Use image node_id 3 for calling a global function with example usage: test_significant_words(summarizer) without return types