def METHOD_NAME(mock_clog, mock_factory):
    mock_factory._log(
        timestamp=datetime.fromtimestamp(1589828049),
        level="ERROR",
        additional_fields={"additional_key": "additional_value"},
    )
    assert mock_clog.log_line.call_args_list == [
        mock.call(
            "request_logs",
            (
                '{"additional_key": "additional_value", '
                '"cluster": "a_cluster", '
                '"hostname": "a_hostname", '
                '"human_timestamp": "2020-05-18T18:54:09", '
                '"level": "ERROR", '
                '"unix_timestamp": 1589828049.0}'
            ),
        ),
    ]