ZeroPointDomain

class torchao.quantization.ZeroPointDomain(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)

列舉，指示零點是在整數域還是浮點域

整數域：quantized_val = (float_val / scale) (integer) + zero_point (integer) 浮點域：quantized_val = (float_val - (zero_point (float) - scale * mid_point)) / scale 無域：quantized_val = (float_val / scale)