code: def test_single_sentence():
      document = build_document(("I am one sentence",))
      summarizer = TextRankSummarizer()
      summarizer.stop_words = (
          "I",
          "am",
      )
  
      returned = summarizer(document, 10)
      assert len(returned) == 1
  
file_path: sumy/tests/test_summarizers/test_text_rank.py
imports: from __future__ import absolute_import
  from __future__ import division, print_function, unicode_literals
  import pytest
  import sumy.summarizers.text_rank
  from sumy.summarizers.text_rank import TextRankSummarizer
  from sumy.nlp.stemmers import Stemmer
  from sumy._compat import to_unicode
  from ..utils import build_document
label_desc: Use image node_id 3 for calling a global function with example usage: test_single_sentence() without return types