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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def job(func_or_queue, connection=None, *args, **kwargs):
 """ The same as RQ's job decorator, but it automatically works out the ``connection`` argument from RQ_QUEUES. And also, it allows simplified ``@job`` syntax to put job into default queue. If RQ.DEFAULT_RESULT_TTL setting is set, it is used as default for ``result_ttl`` kwarg. """

    if callable(func_or_queue):
        func = func_or_queue
        queue = 'default'
    else:
        func = None
        queue = func_or_queue

    if isinstance(queue, six.string_types):
        try:
            queue = get_queue(queue)
            if connection is None:
                connection = queue.connection
        except KeyError:
            pass

    RQ = getattr(settings, 'RQ', {})
    default_result_ttl = RQ.get('DEFAULT_RESULT_TTL')
    if default_result_ttl:
        kwargs.setdefault('result_ttl', default_result_ttl)

    decorator = _rq_job(queue, connection=connection, *args, **kwargs)
    if func:
        return decorator(func)
    return decorator