code: def test_expand_noun_phrase(self):
      doc = self.nlp("Keystone plant habitats are good.")
      chunk = self.detector.expand_to_noun_compound(doc[1], doc)
      assert chunk == doc[0:3]
  
file_path: scispacy/tests/test_hyponym_detector.py
imports: import unittest
  import spacy
  from scispacy.hyponym_detector import HyponymDetector
label_desc: Use image node_id 4 for calling the TestHyponymDetector obj's underlying member method code with example usage: obj.test_expand_noun_phrase() without return types