code: def test_parameters():
      assert_equal(len(doc["Parameters"]), 3)
      assert_equal(
          [n for n, _, _ in doc["Parameters"]], ["mean", "cov", "shape"]
      )
  
      arg, arg_type, desc = doc["Parameters"][1]
      assert_equal(arg_type, "(N, N) ndarray")
      assert desc[0].startswith("Covariance matrix")
      assert doc["Parameters"][0][-1][-2] == "   (1+2+3)/3"
  
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 4 for calling a global function with example usage: test_parameters() without return types