def _attempt_id_to_task_id(attempt_id):
    return 'task_' + '_'.join(attempt_id.split('_')[1:5])
Convert e.g. ``'attempt_201601081945_0005_m_000005_0'``
dataset/ETHPy150Open Yelp/mrjob/mrjob/logs/ids.py/_attempt_id_to_task_id