LogicalResult UnifyReplicationInfo(func::FuncOp func) {
    auto new_repl_info =
        builder.getStringAttr(func.getSymName().str() + "_repl_info");
    for (auto& op : func.getRegion().getOps()) {
      if (auto compile_op = llvm::dyn_cast<TF::TPUCompilationResultOp>(op)) {
        UpdateReplicationAttr(compile_op, new_repl_info);
      } else {
        UpdateReplicationAttr(&op, new_repl_info);

    if (!func_op) return failure();
    // The quantized fusion should have requantize and return ops at the end.
    auto return_op = dyn_cast_or_null<func::ReturnOp>(
        func_op.getRegion().getBlocks().front().getTerminator());
    if (!return_op) return failure();
    auto req_op = llvm::dyn_cast_or_null<mlir::stablehlo::UniformQuantizeOp>(
        return_op.getOperands()[0].getDefiningOp());

        if (endpoint.isPresent()) {
            amazonS3Client.setEndpoint(endpoint.get().toString());
        } else {
            Optional<Region> region = s3RegionalResource.getRegion();
            if (region.isPresent()) {
                amazonS3Client.setRegion(region.get());
            }
        }
    }

  // function.
  OpBuilder builder(graph_op);
  auto new_graph_op =
      builder.create<GraphOp>(graph_op.getLoc(), new_result_types);
  new_graph_op.getRegion().takeBody(graph_op.getRegion());
  graph_op->replaceAllUsesWith(
      new_graph_op->getResults().drop_back(num_resources));
  graph_op.erase();
  func::ReturnOp return_op = cast<func::ReturnOp>(block.getTerminator());

    def __init__(self, *args, **kwargs) -> None: ...

class Operation:
    def __init__(self, *args, **kwargs) -> None: ...
    def dump(self) -> None: ...
    def getNumResults(self) -> int: ...
    def getRegion(self, arg0: int) -> Region: ...
    def getResult(self, arg0: int) -> OpResult: ...

class OperationState:
    def __init__(self, arg0: Location, arg1: str) -> None: ...

            def uri = new URI("s3://${bucketName}.${regionForUrl}${key}")

            S3RegionalResource s3RegionalResource = new S3RegionalResource(uri)
            s3Client.amazonS3Client.setRegion(s3RegionalResource.getRegion().get())


            println "Regional uri: ${uri}"
            println("Creating bucket: ${bucketName}")

  for (int i = 0; i < op->getNumRegions(); ++i) {
    state.addRegion();
  }
  Operation* new_op = builder.create(state);
  for (const auto& indexed_regions : llvm::enumerate(op->getRegions())) {
    Region& region = op->getRegion(indexed_regions.index());
    IRMapping mapping;
    indexed_regions.value().cloneInto(&region, mapping);
  }
  int new_position = 0;
  for (auto result : op->getResults()) {

    if (auto func = dyn_cast<func::FuncOp>(call.resolveCallable())) {
      (*arguments_to_erase)[func].push_back(argument_index);
      work_list->push_back(std::make_pair(&func.getRegion(), argument_index));
    }
  } else if (auto if_op = dyn_cast<TF::IfOp>(user_op)) {
    (*arguments_to_erase)[if_op].push_back(argument_index);
    for (auto callee : {if_op.then_function(), if_op.else_function()}) {

      if (candidate_op->getNumRegions() != 0) {
        for (const auto& indexed_regions :
             llvm::enumerate(candidate_op->getRegions())) {
          Region& target_region =
              quantized_op->getRegion(indexed_regions.index());
          IRMapping mapping;
          indexed_regions.value().cloneInto(&target_region, mapping);
        }
      }

      if (!passthrough_arg) break;
      value = call.getArgOperands()[passthrough_arg.value()];
    } else if (isa<tf_device::LaunchOp, tf_device::ClusterOp>(op)) {
      value = op->getRegion(0).front().getTerminator()->getOperand(res_index);
    } else {
      break;
    }
  }
  return value;
}

// Analyze the region.
BacktrackAnalysisInfo::BacktrackAnalysisInfo(