// Uses TF ops that mimic quantization behavior. Used when the corresponding
  // integer op is not yet present.
  TF = 1;
  // Uses TF XLA ops
  XLA = 2;
  // Uses TF Uniform Quantized ops
  UNIFORM_QUANTIZED = 3;
  // Uses the StableHLO Quantizer. StableHLO Quantizer will be available as
  // an option in the TF Quantizer in StableHLO Quantizer v1.
  STABLEHLO = 4;
}

    quantization_options.enable_per_channel_quantization = False

  if quantization_options.enable_per_channel_quantization and not (
      (
          quantization_options.op_set == quant_opts_pb2.OpSet.UNIFORM_QUANTIZED
          or quantization_options.quantization_method.preset_method
          == _PresetMethod.METHOD_STATIC_RANGE_WEIGHT_ONLY_INT8
      )
      or (
          quantization_options.op_set

      quantization_options.mutable_quantization_method()->set_preset_method(
          quantization::QuantizationMethod::METHOD_DYNAMIC_RANGE_INT8);
      quantization_options.set_op_set(quantization::UNIFORM_QUANTIZED);
      quantization_options.set_min_num_elements_for_weights(
          kWeightsMinNumElementsDefault);
      quantization::AddQuantizePtqDynamicRangePasses(pass_manager,

        UniformQuantizeFunctionCallPattern::Match(uniform_quantize_call_op);
    if (failed(uniform_quantize_call_pattern_for_input)) {
      LLVM_DEBUG(llvm::dbgs()
                 << "Failed to match uniform_quantized call op for input.\n");
      return failure();
    }

    // Match the subgraph that receives the convolution output.
    Value conv_output_value = op.getResult();
    if (auto output_element_type =