def test_passed_noDefaultValues(self):
        """
        The results of L{passed} only include arguments explicitly
        passed, not default values.
        """
        def func(a, b, c=1, d=2, e=3):
            pass
        self.assertEqual(self.checkPassed(func, 1, 2, e=7),
                         dict(a=1, b=2, e=7))

        The results of L{passed} only include arguments explicitly
        passed, not default values.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/python/test/test_deprecate.py