How to use the zappa.handler.LambdaHandler function in zappa

def test_run_function(self):
        self.assertIsNone(LambdaHandler.run_function(no_args, 'e', 'c'))
        self.assertEqual(LambdaHandler.run_function(one_arg, 'e', 'c'), 'e')
        self.assertEqual(LambdaHandler.run_function(two_args, 'e', 'c'), ('e', 'c'))
        self.assertEqual(LambdaHandler.run_function(var_args, 'e', 'c'), ('e', 'c'))
        self.assertEqual(LambdaHandler.run_function(var_args_with_one, 'e', 'c'), ('e', 'c'))

        try:
            LambdaHandler.run_function(unsupported, 'e', 'c')
            self.fail('Exception expected')
        except RuntimeError as e:
            pass

def test_run_function(self):
        self.assertIsNone(LambdaHandler.run_function(no_args, 'e', 'c'))
        self.assertEqual(LambdaHandler.run_function(one_arg, 'e', 'c'), 'e')
        self.assertEqual(LambdaHandler.run_function(two_args, 'e', 'c'), ('e', 'c'))
        self.assertEqual(LambdaHandler.run_function(var_args, 'e', 'c'), ('e', 'c'))
        self.assertEqual(LambdaHandler.run_function(var_args_with_one, 'e', 'c'), ('e', 'c'))

        try:
            LambdaHandler.run_function(unsupported, 'e', 'c')
            self.fail('Exception expected')
        except RuntimeError as e:
            pass

def test_handler(self, session):
        # Init will test load_remote_settings
        lh = LambdaHandler('test_settings', session=session)

        # Annoyingly, this will fail during record, but
        # the result will actually be okay to use in playback.
        # See: https://github.com/garnaat/placebo/issues/48
        self.assertEqual(os.environ['hello'], 'world')

        event = {
            "body": {},
            "headers": {},
            "params": {
                "parameter_1": "asdf1",
                "parameter_2": "asdf2",
            },
            "method": "GET",
            "query": {}
        }

def certify_callback(event, context):
    """
    Load our LH settings and update our cert.
    """
    lh = LambdaHandler()
    return lh.update_certificate()