An intermediate struct to store a hash state, in order to be able to hash multiple values and get the final address. Storage path should have two interfaces, if T is storable then it should implement StorageAsPointer in order to be able to get the address of the storage path. Otherwise, if T is not storable then it should implement some kind of updating trait, e.g. StoragePathEntry.

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Signature

pub struct StoragePath {
    __hash_state__: HashState,
}