code: def test_normalize_none(doc_long_en):
      result = kt.yake(doc_long_en, normalize=None)
      assert len(result) > 0
  
file_path: textacy/tests/extract/keyterms/test_yake.py
imports: import pytest
  import textacy
  from textacy.extract import keyterms
label_desc: Use image node_id 3 for calling a global function with example usage: test_normalize_none(doc_long_en) without return types