old_contents: """
  Package containing modality-specific classes.
  """
  __docformat__ = 'restructuredtext'
  
new_contents: """
  Package containing modality-specific classes.
  """
  __docformat__ = 'restructuredtext'
  
  def test(level=1, verbosity=1):
      from numpy.testing import NumpyTest
      return NumpyTest().test(level, verbosity)
  
subject: add test() functions