| ModelStorage | A ModelStorage trait that abstracts where the storage is. Currently it’s only world storage, but this will be useful when we have other storage solutions (micro worlds). |
| ModelValueStorage | A ModelValueStorage trait that abstracts where the storage is. |
| ModelStorageTest | A ModelStorage trait that abstracts where the storage is. Currently it’s only world storage, but this will be useful when we have other storage solutions (micro worlds). |
| ModelValueStorageTest | A ModelValueStorageTest trait that abstracts where the storage is and bypass the permission checks. |