How to use the socketshark.constants.ERR_EVENT_NOT_FOUND function in socketshark

assert client.log.pop() == {
            'status': 'error',
            'error': c.ERR_INVALID_EVENT,
        }

        await session.on_client_event({'event': None})
        assert client.log.pop() == {
            'status': 'error',
            'error': c.ERR_INVALID_EVENT,
        }

        await session.on_client_event({'event': ''})
        assert client.log.pop() == {
            'status': 'error',
            'event': '',
            'error': c.ERR_EVENT_NOT_FOUND,
        }

        await session.on_client_event({'event': 'hello'})
        assert client.log.pop() == {
            'status': 'error',
            'event': 'hello',
            'error': c.ERR_EVENT_NOT_FOUND,
        }

        assert not client.log

async def process(self):
        raise EventError(c.ERR_EVENT_NOT_FOUND)