def uncamel(s):
    return UNCAMEL_RE.sub(r'_\1', s).lower()
Returns the correct null sink based on the OS.
dataset/ETHPy150Open lsaffre/lino/lino/utils/__init__.py/uncamel--crossover with--dataset/ETHPy150Open ARM-software/workload-automation/wlauto/utils/misc.py/get_null