def test_init(self):
        """
        Test the init method.

        @raise AssertionError: If the test fails.
        """
        try:
            Null()
            Null('value')
            Null('value', param='value')
        except:
            raise AssertionError()

        Test the init method.

        @raise AssertionError: If the test fails.
        
tests/behavioral_tests/test_null.py