ZeroPointDomain

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

列舉型別，指示零點 (zero_point) 是處於整數域還是浮點域

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)