code: def test_summary():
      npt.assert_(doc["Summary"][0].startswith("Draw values"))
      npt.assert_(doc["Summary"][-1].endswith("covariance."))
  
imports: import textwrap
  from dipy.workflows.docstring_parser import NumpyDocString
  import numpy.testing
label_desc: Use image node_id 2 for calling a global function with example usage: test_summary() without return types