    blob_refs: HashMap<Uuid, HashMap<String, Box<dyn BlobRef>>>,
}

impl MemoryMetaStorage {
    pub fn new(config: MemoryMetaStorageConfig) -> Result<Self, MetaStorageError> {
        Ok(Self { metas: HashMap::new(), blob_refs: HashMap::new() })
    }
}

impl MetaStorage for MemoryMetaStorage {