attr, is_narrow_range && is_signed, bit_width, is_signed,
              is_narrow_range, is_legacy_float));
    }
    return insertQDQ(rewriter, op, quant_type, quant_op);
  }

  // Insert Quantize and Dequantize ops.
  bool insertQDQ(PatternRewriter& rewriter, arith::ConstantOp op,
                 QuantizedType quant_type, QuantizationUnit quant_op) const {
    if (!quant_type) return false;

              attr, is_narrow_range && is_signed, bit_width, is_signed,
              is_narrow_range, is_legacy_float));
    }
    return insertQDQ(rewriter, op, quant_type, quant_op);
  }

  // Insert Quantize and Dequantize ops.
  bool insertQDQ(PatternRewriter& rewriter, arith::ConstantOp op,
                 QuantizedType quant_type,
                 std::pair<Operation*, int> quant_op) const {