def test_none_for_sender_socket(self):
        message = {
            'annotation': {'permissions': {'read': ['group:__world__']}},
            'action': 'update',
            'src_client_id': 'pigeon'
        }
        socket = FakeSocket('pigeon')

        assert messages.handle_annotation_event(message, socket) is None
Should return None if the socket's client_id matches the message's.
dataset/ETHPy150Open hypothesis/h/h/streamer/test/messages_test.py/TestHandleAnnotationEvent.test_none_for_sender_socket