What is the task about?

This is a simple task of replacing in the repository.py replace the usage:

• self._storage_backend.get(Snapshot.type) by _storage_load_snapshot()
• self._storage_backend.get(Targets.type) by _storage_load_targets()

This change will require also update the unit tests

Bonus: Implement _storage_load_root to replace usage of _storage_backend.get(Root.type)

Parent feature

No response

References

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Code of Conduct

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