}
  if (!qtype) return {};
  const Type final_type = qtype.castFromExpressedType(target);
  if (!final_type) return {};
  return TypeAttr::get(final_type);
}

void ExtractMinMaxFromAttr(const DenseFPElementsAttr values, const int dim_size,
                           const int slice_size, bool symmetric,
                           SmallVectorImpl<double>& mins,

      SmallVector<double, 4> maxs(1, std::numeric_limits<double>::min());
      // Computes the effective min/max values of the attribute values.
      quant::ExtractMinMaxFromAttr(attr, /*dim_size=*/1, /*slice_size=*/1,
                                   /*symmetric=*/true, mins, maxs);
      double scale = maxs[0] / -llvm::minIntN(tensor_property.number_of_bits);

// `dim_size` is number of channels and `slice_size` is the size of slice per
// each channel. When `symmetric` is true, the range is expanded to [-M, M].
void ExtractMinMaxFromAttr(DenseFPElementsAttr values, int dim_size,
                           int slice_size, bool symmetric,
                           SmallVectorImpl<double>& mins,
                           SmallVectorImpl<double>& maxs);