if (!symbol_uses.has_value()) {
      return failure();
    }
    for (auto use : *symbol_uses) {
      Operation* caller = use.getUser();
      bool changed = false;
      rewriter.startOpModification(caller);
      for (auto [result, type] :
           llvm::zip(caller->getResults(), return_types)) {
        if (result.getType() != type) {
          result.setType(type);
          changed = true;
        }

	}
	return nil
}

// Caller carries the identity and authentication source of a caller.
type Caller struct {
	AuthSource AuthSource
	Identities []string

	KubernetesInfo KubernetesInfo
}

// KubernetesInfo defines Kubernetes specific information extracted from the caller.
// This involves additional metadata about the caller beyond just its SPIFFE identity.
type KubernetesInfo struct {

// Handlers can use this to create a reusable response.
// The response may be reused, so caller should clear any fields.
func (h *SingleHandler[Req, Resp]) NewResponse() Resp {
	return h.newResp()
}

// NewRequest creates a new request.
// Handlers can use this to create a reusable request.
// The request may be reused, so caller should clear any fields.
func (h *SingleHandler[Req, Resp]) NewRequest() Req {
	return h.newReq()

    }

    @Override
    public void configureCommandLineParser(CommandLineParser parser) {
        buildEnvironmentConfigurationConverter.configure(parser);
    }

    @Override
    public Action<? super ExecutionListener> createAction(CommandLineParser parser, ParsedCommandLine commandLine) {
        Parameters parameters = buildEnvironmentConfigurationConverter.convertParameters(commandLine, null);

    }

    if (!pass_status.ok()) {
      // If pass failed and it is:
      //   FallbackEnabled - only collect metrics, do not propagate
      //     error to the caller.
      //   Enabled - return error back to the caller.
      if (pass_state == MlirOptimizationPassState::FallbackEnabled) {
        LOG(WARNING) << StringRefToView(name)
                     << " pass failed, continuing without the pass because the "

        CommandLineParser parser = new CommandLineParser();
        FileCollectionFactory fileCollectionFactory = TestFiles.fileCollectionFactory();
        BuildEnvironmentConfigurationConverter buildEnvironmentConfigurationConverter = new BuildEnvironmentConfigurationConverter(new BuildLayoutFactory(), fileCollectionFactory);
        buildEnvironmentConfigurationConverter.configure(parser);

	if err != nil {
		return nil, err
	}
	cl.subroute = &c.subID
	return cl, nil
}

// Request allows to do a single remote request.
// 'req' will not be used after the call and caller can reuse.
// If no deadline is set on ctx, a 1-minute deadline will be added.
func (c *Connection) Request(ctx context.Context, h HandlerID, req []byte) ([]byte, error) {
	if !h.valid() {
		return nil, ErrUnknownHandler

// Make sure to bump the internode version at storage-rest-common.go
type RawFileInfo struct {
	// Content of entire xl.meta (may contain data depending on what was requested by the caller.
	Buf []byte `msg:"b,allownil"`
}

// FileInfo - represents file stat information.
// The above means that any added/deleted fields are incompatible.

	// (not supplied by the caller). These should be closed as soon as they
	// are inherited by the child process.
	childIOFiles []io.Closer

	// parentIOPipes holds closers for the parent's end of any pipes
	// connected to the child's stdin, stdout, and/or stderr streams
	// that were opened by the Cmd itself (not supplied by the caller).
	// These should be closed after Wait sees the command and copying

                // avoid leaks.
                IoActions.closeQuietly(transformLoader);
                // Throw the exception so the caller doesn't see the obviously closed loader.
                ensureOpened();
            }
        }
        return transformLoader;
    }

    private Loader createLoaderForDomain(ProtectionDomain domain) {