void ensureCleanPhotoTitles(
      String forbiddenTitleCharacters, char replacementCharacter, int maxTitleLength) {
    for (PhotoModel photo : photos) {
      photo.cleanTitle(forbiddenTitleCharacters, replacementCharacter, maxTitleLength);
    }
  }
A Wrapper for all the possible objects that can be returned by a photos exporter.
portability-types-common/src/main/java/org/datatransferproject/types/common/models/photos/PhotosContainerResource.java