code: func (s *CommonStorageDB) ApplyUpdates(batch *statedb.UpdateBatch, height *version.Height) error {
  	return errors.New("this function should not be invoked on this type. Please invoke function ApplyPrivacyAwareUpdates")
  }
docs: // ApplyUpdates overrides the function in statedb.VersionedDB and throws appropriate error message
  // Otherwise, somewhere in the code, usage of this function could lead to updating only public data.