code: def test_cannot_instantiate_incomplete_extractor():
      assert_raises(TypeError, lambda: BadExtractor())
  
file_path: TextBlob/tests/test_np_extractor.py
imports: from __future__ import unicode_literals
  import unittest
  from nose.tools import *
  from nose.plugins.attrib import attr
  import nltk
  from textblob.base import BaseNPExtractor
  from textblob.np_extractors import ConllExtractor
  from textblob.utils import filter_insignificant
label_desc: Use image node_id 1 for calling a global function with example usage: test_cannot_instantiate_incomplete_extractor() without return types