}

// String - returns string representation.
func (tid TargetID) String() string {
	return tid.ID + ":" + tid.Name
}

// ToARN - converts to ARN.
func (tid TargetID) ToARN(region string) ARN {
	return ARN{TargetID: tid, region: region}
}

// MarshalJSON - encodes to JSON data.
func (tid TargetID) MarshalJSON() ([]byte, error) {
	return json.Marshal(tid.String())
}

// UnmarshalJSON - decodes JSON data.

  // Registered hook to check if the given region, which is attached to an
  // operation that is *not* isolated from above (i.e. no internal regions
  // reference values defined in an enclosing region), should be used when
  // materializing constants.
  // In the executor dialect we materialize inside an island.
  bool shouldMaterializeInto(Region *region) const final {
    return isa<tf_executor::IslandOp>(region->getParentOp());

    // Update the regions. The dialect conversion framework wants new regions to
    // be created and updated, rather than updating the old op. Thus we use an
    // OperationState so we can add regions to the new op.
    OperationState state(op->getLoc(), op->getName().getStringRef(), operands,
                         new_results, op->getAttrs(), op->getSuccessors());
    for (Region& region : op->getRegions()) {

} PosixMemoryRegion;

static void Cleanup(TF_ReadOnlyMemoryRegion* region) {
  auto r = static_cast<PosixMemoryRegion*>(region->plugin_memory_region);
  munmap(const_cast<void*>(r->address), r->length);
  delete r;
}

static const void* Data(const TF_ReadOnlyMemoryRegion* region) {
  auto r = static_cast<PosixMemoryRegion*>(region->plugin_memory_region);
  return r->address;
}

	for i, localityEndpoint := range loadAssignment.Endpoints {
		// if region/zone/subZone all match, the priority is 0.
		// if region/zone match, the priority is 1.
		// if region matches, the priority is 2.
		// if locality not match, the priority is 3.
		priority := util.LbPriority(locality, localityEndpoint.Locality)
		// region not match, apply failover settings when specified

	}

	return fmt.Sprintf("duplicate queue configuration %v", message)
}

// ErrUnknownRegion - unknown region error.
type ErrUnknownRegion struct {
	Region string
}

func (err ErrUnknownRegion) Error() string {
	return fmt.Sprintf("unknown region '%v'", err.Region)
}

// ErrARNNotFound - ARN not found error.
type ErrARNNotFound struct {
	ARN ARN
}

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

	IsRoot() bool
	Parent() language.Tag
}

// Make a compact Tag from a fully specified internal language Tag.
func Make(t language.Tag) (tag Tag) {
	if region := t.TypeForKey("rg"); len(region) == 6 && region[2:] == "zzzz" {
		if r, err := language.ParseRegion(region[:2]); err == nil {
			tFull := t
			t, _ = t.SetTypeForKey("rg", "")
			// TODO: should we not consider "va" for the language tag?
			var exact1, exact2 bool

        alias_analysis_(alias_analysis),
        op_to_parallel_ids_(op_to_parallel_ids) {
    AnalyzeFunction(func_op);
  }

  // Constructs analysis info by analyzing the given region.
  SideEffectAnalysisInfo(Region* region,
                         const OpSideEffectCollector& op_side_effect_collector,
                         const TF::ResourceAliasAnalysis::Info& alias_analysis,

  # In multizone mode we need to add instances for all nodes in the region.
  if [[ "${MULTIZONE:-}" == "true" ]]; then
    EXPECTED_NUM_NODES=$(gcloud -q compute instances list --project="${PROJECT}" --format="[no-heading]" \