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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 _sf2(args):
 """ A shallow wrapper for sigma_filter. Parameters args : list A list of arguments for sigma_filter Returns ------- None """

    # an easier to debug traceback when multiprocessing
    # thanks to https://stackoverflow.com/a/16618842/1710603
    try:
        return sigma_filter(*args)
    except:
        import traceback
        raise Exception("".join(traceback.format_exception(*sys.exc_info())))