def _count_righthand_zero_bits(number, bits):
    if number == 0:
        return bits
    return min(bits, _compat_bit_length(~number & (number - 1)))
Count the number of zero bits on the right hand side.
dataset/ETHPy150Open anzev/hedwig/build/pip/pip/_vendor/ipaddress.py/_count_righthand_zero_bits