code: func Internal(d *tq.Dispatcher) StorageServer {
  	impl := &storageImpl{
  		tq:           d,
  		getGS:        gs.Get,
  		settings:     settings.Get,
  		getSignedURL: getSignedURL,
  	}
  	impl.registerTasks()
  	return impl
  }
docs: // Internal returns non-ACLed implementation of StorageService.
  //
  // It can be used internally by the backend. Assumes ACL checks are already
  // done.
  //
  // Registers some task queue tasks in the given dispatcher.