code: def test_keywords_title(self):
      self.index.index(("And", "Or", "Eof", "Not"))
      self.index._index.initSearch()
      assert self.index.search(("And", "Or", "Eof", "Not"))[0] == 1
  
file_path: dedupe/tests/test_tfidf.py
imports: import unittest
  import dedupe
label_desc: Use image node_id 3 for calling the ParsingTest obj's underlying member method code with example usage: obj.test_keywords_title() without return types