Run result worker.

def result_worker(ctx, result_cls, get_object=False):
    """
    Run result worker.
    """
    g = ctx.obj
    ResultWorker = load_cls(None, None, result_cls)

    result_worker = ResultWorker(resultdb=g.resultdb, inqueue=g.processor2result)

    g.instances.append(result_worker)
    if g.get('testing_mode') or get_object:
        return result_worker

    result_worker.run()