code: def test_references():
      assert doc["References"][0].startswith("..")
      assert doc["References"][-1].endswith("2001.")
  
imports: import sys, textwrap
  from numpydoc.docscrape import NumpyDocString, FunctionDoc, ClassDoc
  from numpydoc.docscrape_sphinx import SphinxDocString, SphinxClassDoc
  from nose.tools import *
label_desc: Use image node_id 8 for calling a global function with example usage: test_references() without return types